Government employees. Diaries (1912–1933) kept by Collins recording his travel and activities as a U.S. farmer for the Sac and Fox Indian Agency; correspondence (1924–1929) relating to lease disputes; weekly reports (1922–1925) to the Shawnee Indian agent; and other records (1907–1936) relating to the Sac and Fox and Iowa Indians in Oklahoma. The collection also includes transcripts of the materials, with an introduction by John Roger Collins.