Sibley, SylvesterA survey map of Pennfield Township in Calhoun County, Michigan, drawn in April 1826.JPEG20001a0faf3d-601e-4d6a-b307-04d85e2c7ea4MI-T001S-R007WengDepartment of Natural Resources8888-003Public01S 07W - Survey Map of Pennfield Township, Calhoun County [Michigan]MapsMichigan--CalhounT001S-R007W1826