Professor and Mrs. H. C. Hamilton being photographed by Weston Ashmore Bousfield (1904-1986), 1937, by Marjorie Van de Water, Black and white photographic print, Smithsonian Institution Archives, Acc. 90-105 - Science Service, Records, 1920s-1970s, SIA Acc. 90-105 (SIA-SIA2008-3292).