Books by Lon Oliver Weldon:
Books in the extended shelves:
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Weldon, Lon Oliver, 1884-: Psychiatric studies of delinquents. In five parts. (Govt. print. off., 1920), also by Walter L. Treadway, Alice Mehaffey Hill, and United States Public Health Service (page images at HathiTrust)
Find more by Lon Oliver Weldon at your library, or elsewhere.