Clerk to Gen. Lewis Cass on 1819 expedition among Indians of upper Great Lakes, Indian agent and negotiator, mayor of Detroit in 1834, and later University of Michigan regent. Papers consist primarily of material relating to his early experience among the Indians including reports to Cass and other accounts of Indian life and language. Consists in part of photostats of material held by the Burton Historical Library.
The Trowbridge collection consists mainly of materials accumulated during the early years of his career when he was acting as Indian agent and when he devoted himself to the study of the languages and customs of the native Americans of the upper midwest.
The major portion of the Trowbridge papers are located at the Burton Historical Collection (NUCMC 70-1194)