For the troop levels for 1870 and 1877, the numbers varied within the year and the high/low for that year is given, but the month of the peak varies by state. Gregory P. Downs and Scott Nesbit, “Mapping Occupation: Force, Freedom, and the Army in Reconstruction,” American Council of Learned Societies, University of Georgia, March 2015, http://mappingoccupation.org/map/index.html.

Figures for Kentucky and Tennessee are given, but they were not part of Reconstruction, as they had met the conditions before the Reconstruction Acts were passed.

Texas troop numbers are higher, but the majority of troops were deployed to prevent Native American raids and to guard the U.S.-Mexico border. Mark Grimsley, “Wars for the American South: The First and Second Reconstructions Considered as Insurgencies,” Civil War History, Vol. 58, No. 1 (March 2012), p. 12, doi.org/10.1353/cwh.2012.0026.