Organized into two series, Correspondence and Publications. The Correspondence series is the larger series in the collection and is further organized into 2 subseries: Parents' correspondence and General correspondence. The Parents' correspondence subseries consists entirely of Broom's incoming and outgoing correspondence with his parents while he was a student at Indiana University. In the letters he writes in detail about his involvement with the IU concert band and orchestra, trips the band takes throughout the country, as well as his coursework. He also frequently writes about his car they affectionately call "Lizzie." The files are arranged chronologically, with his more numerous outgoing correspondence placed first in the box and his parents' letters following. The General correspondence subseries consists entirely of incoming correspondence received by Broom from friends and associates, many IU students themselves. Prominently featured is correspondence from friend Allen R. Markee, who was a member of the band before leaving IU to pursue other interests.

The Publications series consists of one item, a Y's Men newsletter from the IU Y.M.C.A. It is undated, but is numbered vol. 1 and states, "Allow us to present the introductory number of the Indiana Y's Men." Based on the content of the newsletter, it was probably produced in December 1937 or January 1938.