The collection consists of personal and professional papers of the architect Edward H. Bennett. The collection is arranged into two series. Series 1 includes correspondence, drafts, and plans from throughout Bennett's career. The most significant part of the collection is the correspondence between Daniel Burnham and Bennett, that reveals some of Burnham's thoughts regarding the 1909 Plan of Chicago. There are letters with other professional colleagues as well. The photographs span both  the professional and personal realms, including many photographs of three generations of the Bennett family and many photographs Bennett took or acquired to inform his architectural projects. There are several sketchbooks and scrapbooks and also several books of study photographs.

A substantial portion of the Weber & Weber Collection contains documents relating to the Ravinia Festival Park as Bertram Weber worked on a number of architectural projects at the park. These documents include correspondence and architectural proposals and plans for work on the Pavilion, West Parking Lot, Murray Theater, Gate Building, First Aid Building, and West Toilet Building, among others. Related to Ravinia, there are also financial documents, annual reports, festival publications, art exhibit documents, festival flag designs, as well as Board of Trustee and Executive Committee meeting minutes.

Also in the collection are personal documents of Bertram Weber. This includes correspondence between he and clients and family and friends, as well as documents related to the various clubs and associations to which Weber belonged. The collection also contains architectural tools used by both Bertram and John Weber.

The collection contains a number of building plans and blueprints from projects designed by Weber. These projects include both private residences and public buildings, such as churches, schools and retirement homes. Highlighting two major projects on which Weber worked, there are two series devoted to the Aurora and Exmoor Country Clubs. They contain documentation ranging from designs and contracts to a drawing log, cost estimates and test reports.