Author
Michigan. Public Domain Commission
5
Coffman, Lotus Delta, 1875-1938
2
Minnesota. Committee on Land Utilization
2
Zon, Raphael, 1874-1956
2
Bézard, François-Siméon, 1760-1849
1
Civilian Conservation Corps (U.S.)
1
Jesness, Oscar B. (Oscar Bernard), b. 1889
1
Nowell, Reynolds I. (Reynolds Irwin), 1905-
1
United States. Bureau of Agricultural Economics. Division of Land Economics
1
University of Minnesota
1