Petersen, Eugene Thor, 1920- Mackinac Island: its history in pictures, by Eugene T. Petersen. - Mackinac Island, Mich., Mackinac Island State Park Commission, c1973. - 103 p. illus. 29 cm. Subjects--Geographic Terms: Mackinac Island (Mich. : Island)--History--Pictorial works. LC Class. No.: F572.M16 / P47 Dewey Class. No.: 917.74/923