Britain, Calvin Jr.Lyon, Lucius, 1800-1851A survey map of Port Sheldon Township in Ottawa County, Michigan. The township lines were measured in late 1830 or early 1831 while the subdivision lines were measured in 1832.JPEG200097a36356-3d62-46da-ba3e-6c8c7e6a028aMI-T006N-R016WengDepartment of Natural Resources8888-003Public06N 16W - Survey Map of Port Sheldon Township, Ottawa County [Michigan]MapsMichigan--OttawaT006N-R016W1830