573. Map of Popple Township: Township 147 N, Range 38 W of the 5th PM. Maps University Of Minnesota Public content 1912. Ringborg, Axel. Page 37: Atlas of Clearwater County, Minnesota, 1912. Kenyon Company.
574. Map of Poppleton Township: Township 162 N, Range 47 W of the 5th PM. Maps University Of Minnesota Public content 1912. Geo. A. Ogle & Company. Page 29: Standard atlas of Kittson County, Minnesota, 1912.
576. Map of Preston Lake Township: Township 115 N, Range 31 W of the 5th PM. Maps University Of Minnesota Public content 1913. Webb Publishing Co. Page 37: Atlas and farm directory with complete survey in township plats, Renville County, Minnesota, 1913. Webb Publishing Company.
577. Map of Ramsey Township: Township 32 N, Range 25 W of the 4th PM. Maps University Of Minnesota Public content 1914. Farmer (Saint Paul, Minn.). Page 15: Atlas and farmers' directory of Anoka County and eleven northern townships of Hennepin County, Minnesota, 1914. Webb Publishing Company.
578. Map of Ransom Township: Township 101 N, Range 41 W of the 5th PM. Maps University Of Minnesota Public content 1914. Geo. A. Ogle & Company. Page 43: Standard atlas of Nobles County, Minnesota, 1914. The Company.
580. Map of Red River Township: Township 160 & 161 N, Range 50 W of the 5th PM. Maps University Of Minnesota Public content 1912. Geo. A. Ogle & Company. Page 42-43: Standard atlas of Kittson County, Minnesota, 1912.