Although the Y.M.C.A. materials span 1883-1980, the written documentation is thorough only from 1883-1958.

The Y.M.C.A. series includes annual reports (1889-1898), board minutes (1883-1954), general newsletters (1884-1888), camp newsletters (1930, 1935, 1938), photographs (1926-1980), and scrapbooks (1942-1974). The photographs are organized into these subject categories: camp, events, and programs. Camp photographs are mainly images of Camp Bradfield, a Y.M.C.A. camp just north of near Black River Falls, Wisconsin. The events include the popular Youth-in-Government yearly program in Madison, Wisconsin. The programs are subdivided: basketball, soccer, team portraits, water sports, and other. Not all images are dated. The scrapbooks are newspaper clippings mainly referring to Y.M.C.A. programs and activities.

The Y.M.C.A. Clubs series includes loose scrapbook material, newsletters and photographs of the Central High School "Hi-Y" boys group (1959-1966), and the Men's Y Club (1938-1954).