Chamberlin's daily agendas document his life, family and activities. Various clippings, programs and other ephemera are inserted in the volumes. Highland Park (Illinois) subjects and organizations documented include Trinity Episcopal Church (Highland Park, Ill.), the Flute and Fiddle Club, North Shore Chamber Orchestra, schools and school districts, and the Highland Park Chamber of Commerce. Other organizations and events include the inauguration of Illinois Governor James R. Thompson, the American Bicentennial, and the Chicago Bar Association. There are also 2 monthly calendars, 1978-1979.
The diary in the first year of the series begins, "still unemployed."
Chamberlin diary's also documented the weather, deaths in his personal life, as well as what he ate everyday.