The collection reflects contributions of Corydon Foote during the Civil War and activities of Grand Army of the Republic Post No. 145, sometimes better known as Governor Crapo Post No. 145. Correspondence reveals some activities undertaken by Foote during the war, including marching through Confederate territory past plantations and cotton fields. Foote made no mention of slaves. It is possible he marched through territory liberated by the Union or chose not to mention having seen slaves for reasons unknown. He may have assisted in the looting of civilian homes and farms, though the details in a letter are too spare to know for sure. He wrote a lengthy letter to family about witnessing the execution of a three-time deserter from the Union Army. The letter suggests witnessing death left a deep impression on him. He wrote descriptively of how the deserter’s body acted once shot and of how uncomfortable he felt looking at the ground under which the deserter had been buried. Other records of Foote’s service including papers for a furlough, discharge from the Army, and pension receipts.

Records of Post No. 145 document meetings and finances of the post from the late 1870s to 1936 when the post disbanded for lack of members. Minutes document meetings of the post. Members were frequently referred to as comrades. Reports were read concerning correspondence with individuals and organizations, including other posts, death notices of deceased members, and lectures on various topics, including the war. Records of rosters from the 1870s and 1890s are present. Cash books show how the post received funds, largely in the form of dues, and spent them. Spending them included paying bills or dispensing financial support to members or families of deceased members.

Unconnected to the war is a brief untitled and unauthored history of interurban rail in Flint. The history focuses on the rise and decline of interurban rail. The role of labor factors in it, how much workers were paid and times they went on strike. Financial struggles of many rail lines are detailed as well.

Numerous documents relating to the Crapo Family compose the collection, but particularly of Henry H. Crapo and Mary Ann Crapo. Documents include family correspondence, valentines sent by John Orrell to Mary Ann, a handwritten manuscript from 1843 by Mary Ann on why learning is preferable to financial wealth, a 1904 typed manuscript celebrating the life of Henry Crapo, and Civil War-era military passes issued to John Orrell in 1862. Other documents of interest include correspondence from the Cemetery Board of New Bedford, Massachusetts and teaching certificates issued to Mary Ann Crapo from New Bedford in 1852, 1853, and 1856.