The collection includes a number of mineral maps of Gogebic and Ontonagon Counties in the Upper Peninsula of Michigan, three letterpress books of correspondence, an account book of the lands purchased in 1902, two lumber grading booklets, an 1880 land deed, the agreement between Rupp and Olson, some land redemption correspondence (1913 and 1915), and a large photograph of Bessemer, Michigan.

This collection contains an advertising circular (1865) announcing the opening of a general surveying office in Detroit, Michigan. The proprietor, Francis L. Thomas, great-grandfather of the donor, did surveying work in the Saginaw Bay area (circa 1845-1880).

Also included is an invitation to a masquerade ball in Chesaning, Michigan (1874).