Burt, William Austin, 1792-1858, Carleton, Guy H. (Surveyor) (1841). 44N 13W - Survey Map of Germfask Township, Schoolcraft County [Michigan]. Department of Natural Resources. https://michigan.access.preservica.com/uncategorized/IO_e33c7891-6905-4853-97dd-7bc642513c1a (map)