Britain, Calvin Jr.A survey map of Constantine Township in St. Joseph County, Michigan, drawn in April 1828.JPEG2000f6333a0b-f601-4ad7-82fd-359efd94b21aMI-T007S-R012WengDepartment of Natural Resources8888-003Public07S 12W - Survey Map of Constantine Township, St. Joseph County, Page 1 [Michigan]MapsMichigan--St. JosephT007S-R012W1828