Commanding officers of every post were required to submit a personnel report at specified intervals to the Adjutant General's Office, from the early 1800s to 1916, with a few returns extending through 1917. While most items are monthly post returns, some are morning reports, field returns, rosters of officers, and related papers which were added by the Adjutant General's Office either as supplemental information or as substitutes for missing reports. The collection includes all Kansas post returns: Fort Aubrey; Fort Harker; Fort Wallace; Fort Leavenworth; and Fort Riley, plus other selected returns.

Guide to this microfilm collection is shelved in Reference 355.30973 R437 1965. Full set is 1550 reels.