The Henry S. Tropp papers consist of materials related to his professional work as both a professor of mathematics at Humboldt State University and a history of computing scholar. The collection includes correspondence, memos, research, books, audio-visual material, and photographs ranging in date from 1950 to 2000. Much of the collection was generated through Tropp's activity in professional associations such as AFIPS and ACM working on publications and events about computer history. There are also research files about notable figures and moments in the history of computing, some of which pertain to the Computer Oral History collection at the Smithsonian Institution. Finally, the collection holds documents related to Tropp's work as a professor of mathematics and his involvement in the field through professional associations and publications.

Henry S. Tropp was a professor of mathematics at Humboldt State University and a well-known computer history scholar. He is best known as one of the creators of the Computer Oral History Collection at the Smithsonian Institution.

26.92 Linear feet, 18 record cartons, 1 newspaper box, 1 manuscript box, 5 cassette boxes, 1 oversize folder

The Computer History Museum (CHM) can only claim physical ownership of the collection. Users are responsible for satisfying any claims of the copyright holder. Requests for copying and permission to publish, quote, or reproduce any portion of the Computer History Museum's collection must be obtained jointly from both the copyright holder (if applicable) and the Computer History Museum.

The collection is open for research. However, the collection may require review by CHM staff before viewing.