The collection primarily contains materials pertaining to the activities of Captain Francis DeGress during and after the Civil War. Some of the documents include personal accounts of battle activities by Captain DeGress, field reports, military certificates, correspondence, official records of DeGress' Battery, and ledgers documenting clothing accounts for soldiers under his command. Of special interest is a letter from Theodore Davis to Mrs. Francis DeGress describing Captain DeGress' prominence in the Cyclorama of the Battle of Atlanta. Also included in the collection is a personal account by Captain DeGress of the 22 July 1864 battle near Atlanta.