This collection contains business records and correspondence from 1898-1931 of four Saginaw Bay (Michigan) area fish companies: Saginaw Bay Fish Company, W.J. Orr Fish Company, Bay Port Fish Company, and the Ballard Fish Company. These records include invoices, labor accounts, bank statements, daily transactions, tax records, annual reports, founding agreements, price lists, and cancelled checks.

Also included is an 1857 survey map of the southeast shore of Saginaw Bay, the tax history of lots on Point Lookout, Michigan, real estate offers for lots around Sand Point, Michigan, and a report on the insulation of icehouses using dead air space.