Mullett, John, 1786-1862A survey map of Portsmouth Township in Bay County, Michigan.JPEG20001a05e319-b474-4073-ae1a-2a7861eee525MI-T013N-R005EengDepartment of Natural Resources8888-003Public13N 05E - Survey Map of Frankenlust Township and Portsmouth Township, Bay County and Zilwaukee Township, Saginaw County, Page 3 [Michigan]MapsMichigan--BayT013N-R005E1823