Architectural drawings for residence, public and commercial buildings, churches, university buildings, and other structures, ca. 1880s-1925, many of which are located in Maine. These were done by Stevens while working independently, in partnership with his son John Howard Stevens, and while a member of architectural firms Fassett and Stevens (with offices in Portland, Maine and Boston, Mass.) and Stevens and Cobb. One unidentified photograph of a house is included. Also included are drawings Stevens did for the book EXAMPLES OF AMERICAN DOMESTIC ARCHITECTURE.