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Herman Hollerith

Herman Hollerith (February 29, 1860 – November 17, 1929) was an American statistician, inventor, and businessman who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting. His invention of the punched card tabulating machine, patented in 1884, marks the beginning of the era of mechanized binary code and semiautomatic data processing systems, and his concept dominated that landscape for nearly a century.[1][2]

Herman Hollerith
Herman Hollerith circa 1888
Born(1860-02-29)February 29, 1860
DiedNovember 17, 1929(1929-11-17) (aged 69)
Resting placeOak Hill Cemetery
EducationCity College of New York
Columbia University (MinEng, PhD)
Occupations
  • Statistician
  • inventor
  • businessman
Known forelectromechanical tabulation of punched card data; IBM
SpouseLucia Beverly (Talcott) Hollerith
Children6
AwardsElliott Cresson Medal (1890)
World's Columbian Exposition, Bronze Medal (1892)
National Inventors Hall of Fame (1990)

Hollerith founded a company that was amalgamated in 1911 with several other companies to form the Computing-Tabulating-Recording Company. In 1924, the company was renamed "International Business Machines" (IBM) and became one of the largest and most successful companies of the 20th century. Hollerith is regarded as one of the seminal figures in the development of data processing.[3]

Biography

Herman Hollerith was the son of German immigrant Georg Hollerith, a school teacher from Großfischlingen, Rhineland-Palatinate. He was born in Buffalo, New York, in 1860, where he also spent his early childhood.[4] He entered the City College of New York in 1875, graduated from the Columbia School of Mines with an Engineer of Mines degree in 1879 at age 19, and, in 1890, earned a Doctor of Philosophy based on his development of the tabulating system.[1][5] In 1882, Hollerith joined the Massachusetts Institute of Technology where he taught mechanical engineering and conducted his first experiments with punched cards.[6] He eventually moved to Washington, D.C., living in Georgetown with a home on 29th Street and a business building at 31st Street and the C&O Canal, where today there is a commemorative plaque installed by IBM. He died in Washington, D.C. at age 69 of a heart attack.[6]

Electromechanical tabulation of data

At the suggestion of John Shaw Billings, Hollerith developed a mechanism using electrical connections to increment a counter, recording information.[7] A key idea was that a datum could be recorded by the presence or absence of a hole at a specific location on a card. For example, if a specific hole location indicates marital status, then a hole there can indicate married while not having a hole indicates single. Hollerith determined that data in specified locations on a card, arranged in rows and columns, could be counted or sorted electromechanically. A description of this system, An Electric Tabulating System (1889), was submitted by Hollerith to Columbia University as his doctoral thesis,[8] and is reprinted in Randell's book.[9] On January 8, 1889, Hollerith was issued U.S. Patent 395,782,[10] claim 2 of which reads:

 
Replica of Hollerith tabulating machine with sorting box, circa 1890. The "sorting box" was an adjunct to, and controlled by, the tabulator. The "sorter", an independent machine, was a later development.[11]

The herein-described method of compiling statistics, which consists in recording separate statistical items pertaining to the individual by holes or combinations of holes punched in sheets of electrically non-conducting material, and bearing a specific relation to each other and to a standard, and then counting or tallying such statistical items separately or in combination by means of mechanical counters operated by electro-magnets the circuits through which are controlled by the perforated sheets, substantially as and for the purpose set forth.

Inventions and businesses

 
Hollerith punched card
 
Hollerith's grave at Oak Hill Cemetery in Georgetown in Washington, D.C.[12]

Hollerith had left teaching and began working for the United States Census Bureau in the year he filed his first patent application. Titled "Art of Compiling Statistics", it was filed on September 23, 1884; U.S. Patent 395,782 was granted on January 8, 1889.[10]

Hollerith initially did business under his own name, as The Hollerith Electric Tabulating System, specializing in punched card data processing equipment.[13] He provided tabulators and other machines under contract for the Census Office, which used them for the 1890 census. The net effect of the many changes from the 1880 census: the larger population, the data items to be collected, the Census Bureau headcount, the scheduled publications, and the use of Hollerith's electromechanical tabulators, reduced the time required to process the census from eight years for the 1880 census to six years for the 1890 census.[14]

In 1896, Hollerith founded the Tabulating Machine Company (in 1905 renamed The Tabulating Machine Company).[15] Many major census bureaus around the world leased his equipment and purchased his cards, as did major insurance companies. Hollerith's machines were used for censuses in England & Wales, Italy, Germany, Russia, Austria, Canada, France, Norway, Puerto Rico, Cuba, and the Philippines, and again in the 1900 census.[1]

He invented the first automatic card-feed mechanism and the first keypunch. The 1890 Tabulator was hardwired to operate on 1890 Census cards. A control panel in his 1906 Type I Tabulator simplified rewiring for different jobs. The 1920s removable control panel supported prewiring and near instant job changing. These inventions were among the foundations of the data processing industry and Hollerith's punched cards (later used for computer input/output) continued in use for almost a century.[16]

In 1911, four corporations, including Hollerith's firm, were amalgamated to form a fifth company, the Computing-Tabulating-Recording Company (CTR).[17] Under the presidency of Thomas J. Watson, CTR was renamed International Business Machines Corporation (IBM) in 1924. By 1933 The Tabulating Machine Company name had disappeared as subsidiary companies were subsumed by IBM.[18]

Death and legacy

Hollerith is buried at Oak Hill Cemetery in the Georgetown neighborhood of Washington, D.C.[12][19]

Hollerith cards were named after Herman Hollerith, as were Hollerith strings and Hollerith constants. [20]

His great-grandson, the Rt. Rev. Herman Hollerith IV, was the Episcopal bishop of the Diocese of Southern Virginia, and another great-grandson, Randolph Marshall Hollerith, is an Episcopal priest and the dean of Washington National Cathedral in Washington, D.C.[21][22]

See also

Notes

  1. ^ a b c Da Cruz, Frank (March 28, 2011). "Herman Hollerith". columbia.edu. Columbia University. Retrieved February 28, 2014.
  2. ^ Brooks, Frederick P.; Iverson, Kenneth E. (1963). Automatic Data Processing. Wiley. p. 94 "semiautomatic".
  3. ^ Cambell-Kelly, Martin; Aspray, William (2004). Computer: A History of the Information Machine (2ND ed.). Basic Books. p. 16.
  4. ^ . hnf.de. AUPaderborn: Heinz Nixdorf MuseumsForum. April 18, 2012. Archived from the original on October 27, 2016. Retrieved February 28, 2014.
  5. ^ Austrian 1982, p. 56.
  6. ^ a b O'Connor, J. J.; Robertson, E. F. "Herman Hollerith". The MacTutor History of Mathematics Archive. School of Mathematics and Statistics, University of St Andrews, Scotland. Retrieved March 5, 2013.
  7. ^ Lydenberg, Harry Miller (1924). John Shaw Billings: Creator of the National Medical Library and its Catalogue, First Director of the New York Public Library. American Library Association. p. 32.
  8. ^ "AN ELECTRIC TABULATING SYSTEM".
  9. ^ Randell, Brian, ed. (1982). The Origins of Digital Computers, Selected Papers (3rd ed.). Springer-Verlag. ISBN 0-387-11319-3.
  10. ^ a b US patent 395782, Herman Hollerith, "Art of compiling statistics", issued 1889-01-08 
  11. ^ Austrian 1982, pp. 178–179.
  12. ^ a b . oakhillcemeterydc.org. Archived from the original on December 18, 2015. Retrieved January 8, 2018.
  13. ^ Austrian 1982, p. 153.
  14. ^ Report of the Commissioner of Labor in Charge of The Eleventh Census to the Secretary of the Interior for the Fiscal Year Ending June 30, 1895, Washington, D.C., July 29, 1895, Page 9: "You may confidently look for the rapid reduction of the force of this office after the 1st of October, and the entire cessation of clerical work during the present calendar year. ... The condition of the work of the Census Division and the condition of the final reports show clearly that the work of the Eleventh Census will be completed at least two years earlier than was the work of the Tenth Census." Carroll D. Wright Commissioner of Labor in Charge.
  15. ^ Engelbourg 1954, p. 52.
  16. ^ Mackenzie, Charles E. (1980). Coded Character Sets, History and Development. The Systems Programming Series (1 ed.). Addison-Wesley Publishing Company, Inc. p. 7. ISBN 0-201-14460-3. LCCN 77-90165.
  17. ^ "IBM Archives: Frequently Asked Questions" (PDF). Some accounts of the forming CTR state that only three corporations were included. This reference notes that only three of the four corporations are represented in the CTR name. That may be the reason for the differing accounts.
  18. ^ William Rodgers (1969). THINK: A Biography of the Watsons and IBM. p. 83. ISBN 9780297000235.
  19. ^ "Oak Hill Cemetery, Georgetown, D.C. (Amphitheater) - Lot 654 East" (PDF). Oak Hill Cemetery. (PDF) from the original on March 2, 2022. Retrieved August 17, 2022.
  20. ^ American Standard FORTRAN. American Standards Association, X3.9-1966. pp. 9, 10. "4.2.6 Hollerith Type. A Hollerith datum is a string of characters. This string may consist of any characters capable of representation in the processor. The blank character is a valid and significant character in a Hollerith datum."
  21. ^ Steven G. Vegh (February 13, 2009). "New Epsicopal bishop to face tough challenges". Virginian-Pilot.
  22. ^ "Virginia diocese to install bishop". Richmond Times-Dispatch.

References

  • Austrian, Geoffrey D. (1982). Herman Hollerith: The Forgotten Giant of Information Processing. Columbia University Press. p. 418. ISBN 0-231-05146-8.
  • Truesdell, Leon E. (1965). The Development of Punch Card Tabulation in the Bureau of the Census 1890-1940. US GPO. Includes extensive, detailed, description of Hollerith's first machines and their use for the 1890 census.

Further reading

  • Ashurst, Gareth (1983). Pioneers of Computing. Frederick Muller. pp. 77–90.
  • Beniger, James R. (1986/2009) The Control Revolution: Technological and Economic Origins of the Information Society, Harvard University Press, 1986 pp. 390–425
  • Cortada, James W. (1993). Before the Computer: IBM, NCR, Burroughs, & Remington Rand & the Industry they created, 1865 – 1956. Princeton. pp. 344. ISBN 0-691-04807-X.
  • Essinger, James (2004). Jacquard's Web: How a Hand-Loom Led to the Birth of the Information Age. Oxford: Oxford University Press. ISBN 978-0-19-280577-5.
  • Engelbourg, Saul (1954). International Business Machines: A Business History (PhD dissertation). Columbia University. p. 385. Reprinted by Arno Press, 1976, from the best available copy. Some text is illegible.
  • Heide, Lars. "Herman Hollerith". In Jeffrey Fear (ed.). Immigrant Entrepreneurship: German-American Business Biographies, 1720 to the Present. German Historical Institute, 2017.
  • Heide, Lars (2009). Punched-Card Systems and the Early Information Explosion, 1880–1945. Johns Hopkins. ISBN 978-0-8018-9143-4.
  • Hollerith, Herman (April 1889). "An Electric Tabulating System". The Quarterly, Columbia University School of Mines. X (16): 238–255. From the Columbia Univ. History site: This article is the basis for his 1890 Columbia Ph.D. Extracts reprinted in (Randell, 1982).
  • Hollerith, Herman (1890). In connection with the electric tabulation system which has been adopted by U.S. government for the work of the census bureau (PhD dissertation). Columbia University School of Mines.
  • Hollerith, Herman (December 1894). "The Electrical Tabulating Machine". Journal of the Royal Statistical Society. Blackwell Publishing. 57 (4): 678–682. doi:10.2307/2979610. JSTOR 2979610. From Randell (1982),"... brief... fascinating article... describes the way in which tabulators and sorters were used on ... 100 million cards ... 1890 census."

External links

  • Herman Hollerith (2017) In Immigrant Entrepreneurship Heide, Lars. German-American Business Biographies, 1720 to the Present, vol. 4, edited by Jeffrey Fear. German Historical Institute. Last modified April 5, 2017. Recommended!!
  • Hollerith's patents from 1889: U.S. Patent 395,781 U.S. Patent 395,782 U.S. Patent 395,783
  • Columbia University Computing History: Herman Hollerith Hollerith's 1890 Census Tabulator
  • IBM Archives: Herman Hollerith The Tabulating Machine Co. plant
  • Early Office Museum: Punched Card Tabulating Machines
  • O'Connor, John J.; Robertson, Edmund F. "Herman Hollerith". MacTutor History of Mathematics archive. University of St Andrews.
  • The Norwegian Historical Data Center: Census 1900 August 6, 2013, at the Wayback Machine Includes a description of the use of Hollerith machines ("complicated, American enumeration machines"), together with illustrations.
  • The Research notes on Herman Hollerith April 1, 2019, at the Wayback Machine collection at Hagley Museum and Library includes the research materials Geoffrey Austrian used to write Herman Hollerith: Forgotten Giant of Information Processing.
  • Richard Hollerith Papers April 1, 2019, at the Wayback Machine at Hagley Museum and Library. Richard Hollerith was the grandson of Herman Hollerith and part of this collection documents the sale and settlement of the Herman Hollerith estate following the death of his last remaining child, Virginia.
  • Fleishman, Sandra (March 5, 2005). "$8.5 Million And Counting". The Washington Post. Retrieved May 4, 2010. – Hollerith's house

herman, hollerith, february, 1860, november, 1929, american, statistician, inventor, businessman, developed, electromechanical, tabulating, machine, punched, cards, assist, summarizing, information, later, accounting, invention, punched, card, tabulating, mach. Herman Hollerith February 29 1860 November 17 1929 was an American statistician inventor and businessman who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and later in accounting His invention of the punched card tabulating machine patented in 1884 marks the beginning of the era of mechanized binary code and semiautomatic data processing systems and his concept dominated that landscape for nearly a century 1 2 Herman HollerithHerman Hollerith circa 1888Born 1860 02 29 February 29 1860Buffalo New York U S DiedNovember 17 1929 1929 11 17 aged 69 Washington D C U S Resting placeOak Hill CemeteryEducationCity College of New YorkColumbia University MinEng PhD OccupationsStatisticianinventorbusinessmanKnown forelectromechanical tabulation of punched card data IBMSpouseLucia Beverly Talcott HollerithChildren6AwardsElliott Cresson Medal 1890 World s Columbian Exposition Bronze Medal 1892 National Inventors Hall of Fame 1990 Hollerith founded a company that was amalgamated in 1911 with several other companies to form the Computing Tabulating Recording Company In 1924 the company was renamed International Business Machines IBM and became one of the largest and most successful companies of the 20th century Hollerith is regarded as one of the seminal figures in the development of data processing 3 Contents 1 Biography 2 Electromechanical tabulation of data 3 Inventions and businesses 4 Death and legacy 5 See also 6 Notes 7 References 8 Further reading 9 External linksBiography EditHerman Hollerith was the son of German immigrant Georg Hollerith a school teacher from Grossfischlingen Rhineland Palatinate He was born in Buffalo New York in 1860 where he also spent his early childhood 4 He entered the City College of New York in 1875 graduated from the Columbia School of Mines with an Engineer of Mines degree in 1879 at age 19 and in 1890 earned a Doctor of Philosophy based on his development of the tabulating system 1 5 In 1882 Hollerith joined the Massachusetts Institute of Technology where he taught mechanical engineering and conducted his first experiments with punched cards 6 He eventually moved to Washington D C living in Georgetown with a home on 29th Street and a business building at 31st Street and the C amp O Canal where today there is a commemorative plaque installed by IBM He died in Washington D C at age 69 of a heart attack 6 Electromechanical tabulation of data EditMain article Unit record equipment At the suggestion of John Shaw Billings Hollerith developed a mechanism using electrical connections to increment a counter recording information 7 A key idea was that a datum could be recorded by the presence or absence of a hole at a specific location on a card For example if a specific hole location indicates marital status then a hole there can indicate married while not having a hole indicates single Hollerith determined that data in specified locations on a card arranged in rows and columns could be counted or sorted electromechanically A description of this system An Electric Tabulating System 1889 was submitted by Hollerith to Columbia University as his doctoral thesis 8 and is reprinted in Randell s book 9 On January 8 1889 Hollerith was issued U S Patent 395 782 10 claim 2 of which reads Replica of Hollerith tabulating machine with sorting box circa 1890 The sorting box was an adjunct to and controlled by the tabulator The sorter an independent machine was a later development 11 The herein described method of compiling statistics which consists in recording separate statistical items pertaining to the individual by holes or combinations of holes punched in sheets of electrically non conducting material and bearing a specific relation to each other and to a standard and then counting or tallying such statistical items separately or in combination by means of mechanical counters operated by electro magnets the circuits through which are controlled by the perforated sheets substantially as and for the purpose set forth Inventions and businesses Edit Hollerith punched card Hollerith s grave at Oak Hill Cemetery in Georgetown in Washington D C 12 Hollerith had left teaching and began working for the United States Census Bureau in the year he filed his first patent application Titled Art of Compiling Statistics it was filed on September 23 1884 U S Patent 395 782 was granted on January 8 1889 10 Hollerith initially did business under his own name as The Hollerith Electric Tabulating System specializing in punched card data processing equipment 13 He provided tabulators and other machines under contract for the Census Office which used them for the 1890 census The net effect of the many changes from the 1880 census the larger population the data items to be collected the Census Bureau headcount the scheduled publications and the use of Hollerith s electromechanical tabulators reduced the time required to process the census from eight years for the 1880 census to six years for the 1890 census 14 In 1896 Hollerith founded the Tabulating Machine Company in 1905 renamed The Tabulating Machine Company 15 Many major census bureaus around the world leased his equipment and purchased his cards as did major insurance companies Hollerith s machines were used for censuses in England amp Wales Italy Germany Russia Austria Canada France Norway Puerto Rico Cuba and the Philippines and again in the 1900 census 1 He invented the first automatic card feed mechanism and the first keypunch The 1890 Tabulator was hardwired to operate on 1890 Census cards A control panel in his 1906 Type I Tabulator simplified rewiring for different jobs The 1920s removable control panel supported prewiring and near instant job changing These inventions were among the foundations of the data processing industry and Hollerith s punched cards later used for computer input output continued in use for almost a century 16 In 1911 four corporations including Hollerith s firm were amalgamated to form a fifth company the Computing Tabulating Recording Company CTR 17 Under the presidency of Thomas J Watson CTR was renamed International Business Machines Corporation IBM in 1924 By 1933 The Tabulating Machine Company name had disappeared as subsidiary companies were subsumed by IBM 18 Death and legacy EditHollerith is buried at Oak Hill Cemetery in the Georgetown neighborhood of Washington D C 12 19 Hollerith cards were named after Herman Hollerith as were Hollerith strings and Hollerith constants 20 His great grandson the Rt Rev Herman Hollerith IV was the Episcopal bishop of the Diocese of Southern Virginia and another great grandson Randolph Marshall Hollerith is an Episcopal priest and the dean of Washington National Cathedral in Washington D C 21 22 See also EditUnit record equipment History of IBMNotes Edit a b c Da Cruz Frank March 28 2011 Herman Hollerith columbia edu Columbia University Retrieved February 28 2014 Brooks Frederick P Iverson Kenneth E 1963 Automatic Data Processing Wiley p 94 semiautomatic Cambell Kelly Martin Aspray William 2004 Computer A History of the Information Machine 2ND ed Basic Books p 16 Herman Hollerith 1860 1929 hnf de AUPaderborn Heinz Nixdorf MuseumsForum April 18 2012 Archived from the original on October 27 2016 Retrieved February 28 2014 Austrian 1982 p 56 a b O Connor J J Robertson E F Herman Hollerith The MacTutor History of Mathematics Archive School of Mathematics and Statistics University of St Andrews Scotland Retrieved March 5 2013 Lydenberg Harry Miller 1924 John Shaw Billings Creator of the National Medical Library and its Catalogue First Director of the New York Public Library American Library Association p 32 AN ELECTRIC TABULATING SYSTEM Randell Brian ed 1982 The Origins of Digital Computers Selected Papers 3rd ed Springer Verlag ISBN 0 387 11319 3 a b US patent 395782 Herman Hollerith Art of compiling statistics issued 1889 01 08 Austrian 1982 pp 178 179 a b Oak Hill Cemetery Map oakhillcemeterydc org Archived from the original on December 18 2015 Retrieved January 8 2018 Austrian 1982 p 153 Report of the Commissioner of Labor in Charge of The Eleventh Census to the Secretary of the Interior for the Fiscal Year Ending June 30 1895 Washington D C July 29 1895 Page 9 You may confidently look for the rapid reduction of the force of this office after the 1st of October and the entire cessation of clerical work during the present calendar year The condition of the work of the Census Division and the condition of the final reports show clearly that the work of the Eleventh Census will be completed at least two years earlier than was the work of the Tenth Census Carroll D Wright Commissioner of Labor in Charge Engelbourg 1954 p 52 Mackenzie Charles E 1980 Coded Character Sets History and Development The Systems Programming Series 1 ed Addison Wesley Publishing Company Inc p 7 ISBN 0 201 14460 3 LCCN 77 90165 IBM Archives Frequently Asked Questions PDF Some accounts of the forming CTR state that only three corporations were included This reference notes that only three of the four corporations are represented in the CTR name That may be the reason for the differing accounts William Rodgers 1969 THINK A Biography of the Watsons and IBM p 83 ISBN 9780297000235 Oak Hill Cemetery Georgetown D C Amphitheater Lot 654 East PDF Oak Hill Cemetery Archived PDF from the original on March 2 2022 Retrieved August 17 2022 American Standard FORTRAN American Standards Association X3 9 1966 pp 9 10 4 2 6 Hollerith Type A Hollerith datum is a string of characters This string may consist of any characters capable of representation in the processor The blank character is a valid and significant character in a Hollerith datum Steven G Vegh February 13 2009 New Epsicopal bishop to face tough challenges Virginian Pilot Virginia diocese to install bishop Richmond Times Dispatch References EditAustrian Geoffrey D 1982 Herman Hollerith The Forgotten Giant of Information Processing Columbia University Press p 418 ISBN 0 231 05146 8 Truesdell Leon E 1965 The Development of Punch Card Tabulation in the Bureau of the Census 1890 1940 US GPO Includes extensive detailed description of Hollerith s first machines and their use for the 1890 census Further reading EditAshurst Gareth 1983 Pioneers of Computing Frederick Muller pp 77 90 Beniger James R 1986 2009 The Control Revolution Technological and Economic Origins of the Information Society Harvard University Press 1986 pp 390 425 Cortada James W 1993 Before the Computer IBM NCR Burroughs amp Remington Rand amp the Industry they created 1865 1956 Princeton pp 344 ISBN 0 691 04807 X Essinger James 2004 Jacquard s Web How a Hand Loom Led to the Birth of the Information Age Oxford Oxford University Press ISBN 978 0 19 280577 5 Engelbourg Saul 1954 International Business Machines A Business History PhD dissertation Columbia University p 385 Reprinted by Arno Press 1976 from the best available copy Some text is illegible Heide Lars Herman Hollerith In Jeffrey Fear ed Immigrant Entrepreneurship German American Business Biographies 1720 to the Present German Historical Institute 2017 Heide Lars 2009 Punched Card Systems and the Early Information Explosion 1880 1945 Johns Hopkins ISBN 978 0 8018 9143 4 Hollerith Herman April 1889 An Electric Tabulating System The Quarterly Columbia University School of Mines X 16 238 255 From the Columbia Univ History site This article is the basis for his 1890 Columbia Ph D Extracts reprinted in Randell 1982 Hollerith Herman 1890 In connection with the electric tabulation system which has been adopted by U S government for the work of the census bureau PhD dissertation Columbia University School of Mines Hollerith Herman December 1894 The Electrical Tabulating Machine Journal of the Royal Statistical Society Blackwell Publishing 57 4 678 682 doi 10 2307 2979610 JSTOR 2979610 From Randell 1982 brief fascinating article describes the way in which tabulators and sorters were used on 100 million cards 1890 census External links Edit Wikimedia Commons has media related to Herman Hollerith Herman Hollerith 2017 In Immigrant Entrepreneurship Heide Lars German American Business Biographies 1720 to the Present vol 4 edited by Jeffrey Fear German Historical Institute Last modified April 5 2017 Recommended Hollerith s patents from 1889 U S Patent 395 781 U S Patent 395 782 U S Patent 395 783 Columbia University Computing History Herman Hollerith Hollerith s 1890 Census Tabulator IBM Archives Herman Hollerith The Tabulating Machine Co plant Early Office Museum Punched Card Tabulating Machines O Connor John J Robertson Edmund F Herman Hollerith MacTutor History of Mathematics archive University of St Andrews The Norwegian Historical Data Center Census 1900 Archived August 6 2013 at the Wayback Machine Includes a description of the use of Hollerith machines complicated American enumeration machines together with illustrations The Research notes on Herman Hollerith Archived April 1 2019 at the Wayback Machine collection at Hagley Museum and Library includes the research materials Geoffrey Austrian used to write Herman Hollerith Forgotten Giant of Information Processing Richard Hollerith Papers Archived April 1 2019 at the Wayback Machine at Hagley Museum and Library Richard Hollerith was the grandson of Herman Hollerith and part of this collection documents the sale and settlement of the Herman Hollerith estate following the death of his last remaining child Virginia Fleishman Sandra March 5 2005 8 5 Million And Counting The Washington Post Retrieved May 4 2010 Hollerith s house Retrieved from https en wikipedia org w index php title Herman Hollerith amp oldid 1132341347, wikipedia, wiki, book, books, library,

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