Edward S. Colman, U. S. forester, at left, and Clarence Burch are shown on March 26, 1942, in the conscientious objectors camp laboratory checking earth samples to test the soil moisture content in this area.
Colman, Edward S Burch, Clarence Laboratories--California--Glendora Conscientious objectors--California--Glendora Soils--Testing World War, 1939-1945 Glendora (Calif.) Los Angeles Evening Herald and Express photographs Herald-Examiner Collection photographs
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