This collection consists of blueprint specifications for the Lake Forest, Illinois residence and garage of Dexter Cummings, all prepared by architect Harrie Lindeberg.

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.