John Diebold was an important computer pioneer, but the notorious company that bears the Diebold name was founded in 1859, and has been manufacturing safes, vaults, and other "physical security" products since then. They're probably the largest manufacturer of ATMs, based on the ones I see around Boston.
John Diebold was born in New Jersey and later lived in New York. Diebold Inc. is based in Ohio. Perhaps he was related to the founder.
Fred Goldstein k1io fgoldstein "at" ionary.com ionary Consulting