Gevestigd: Eleanor Rooseveltlaan 22
1183 CL  Amstelveen.
(Bezoek uitsluitend op afspraak)

Portrait of Howland Davis. Century Association Archives, Member Photograph Albums Collection, Album 13, Disassembled.
In Century Association Biogrphical Archive. Available at www.centuryarchives.org/caba. Accessed in september 2019.