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- India. Surveyor General1
- Minnesota Highway Improvement Association.1
- Minnesota. State Highway Commission1
- Mutual Automobile Association of Minnesota.1
- Neal, Walter J.1
- Northern Oil Company1
- Phillips Petroleum Company1
- Rand McNally and Company1
- Saint Paul. City Engineer's Office.1
- Simpson, James Henry1
- Thomas George Montgomerie.1
- United States. Army. Corps of Topographical Engineers.1
- United States. Bureau of Public Roads.1
- Wagner & M'Guigan.1
- Wright Land Office1