21N 03W - Survey Map of Roscommon Township, Roscommon County: Michigan
A survey map of the bottom eastern third of Roscommon Township in Roscommon County, Michigan. The township lines were originally measured in 1837; the subdivision lines were re-measured in 1850. Note: while the map only credits William A. Burt for re-surveying the subdivision lines, the map notes also credit George H. Cannon.
Brink, John, Burt, William Austin, and Cannon, George H.