Dave Rueb
Born - died

Dave had one of the largest K&E collections

Osborne Ingle Price
September 30, 1930 – June 3, 2008

Osborne was one of the original founders of the Oughtred Society that first met together in 1991. As the publicity director, he helped to expand the membership in its early years. The list of American slide rule patents was one of his many contributions to the slide rule community. He studied mechanical engineering at the Stevens Institute in Hoboken, NJ, earning his degree in 1955. After a stint in the U.S. Navy he ran his father's business, Magnetic Devices, then relocated to Los Altos, CA. He is survived by his wife Elfried in San Jose, CA.

John Prince
November 13, 1941 – December 6, 2005

John specialized in collecting K&E rules, with a strong interest in Pickett as well. In 2002, John described how he started with slide rules in 1960: "I used a K&E 4181-3 ; we were mandated to use either a 4081-3 or 4181-3 in our freshman slide rule class. I chose the cheaper (very important to a married 18 year old) rule and never regretted it despite the dire predictions from some faculty about dimensional stability and durability. I never really needed a more complex rule while working in graduate school as an electrical engineer." [ISRG, message 15929]

Dick Schwartzer
March 5, 1933 – March 11, 2005

Dick operated The Slide Rule Emporium, the major source for new-in-box Pickett slide rules. Dick was a friend to many.

Joe Levine
December 19, 1948 – January 25, 2005

Joe was a regular contributor to the ISRG list from its beginnings, with the handle "JoeDentist," perhaps best known for his Schmendrolog April Fools' Day hoax.

Herman van Herwijnen
October 15, 1929 – August 8, 2004

Herman was a prominent member of the Dutch Circle of Slide Rule Collectors. His major work was a CD database with over 5000 slide rules cataloged (including images). In addition he co-authored the book Calculating on Slide Rule and Disc and published many times in the Journal of the Oughtred Society. He was also a seller of slide rules.

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Michael O'Leary
November 27, 1951 – July 19, 2003

Michael's slide rule accomplishments ranged from development of the K&E and Pickett master XREF spreadsheets, to moderating the ISRG discussion list, to writing for the Journal of the Oughtred Society. Michael corresponded with many collectors around the world.