Russel Kirkhof was an inventor, mechanic, businessman in Grand Rapids, Michigan. The collection includes diaries, patents, personal correspondence, legal correspondence, business ledgers, and records of his philanthropy.
The Arnold Ott collection documents the life and work of Michigan-born chemist and entrepreneur Arnold Ott from 1940-2008. He worked at Dow Chemical Company and the Upjohn Company where he authored 55 domestic and foreign patents before starting...