External Links

Lonny Hitchen's youtube channel has many videos. One such:
https://www.youtube.com/watch?v=Vo1SAfxw-5k
https://www.youtube.com/channel/UCyKWZTvTlxmYKAIVJQkd7Mw/videos
https://youtu.be/6p8X6Wsoyfo (Friendship Farms, 1989)

1994 CMK Symposium: Crabbet Maynesboro Kellogg slide show narrated by Michael Bowling and R.J. Cadranell. https://youtu.be/UfDpc_UGQUw

WK Kellogg Library vintage postcards. https://cpplibrary.github.io/postcards-compound/browse.html

Archiwa Państwowe: Gumniska photos from 1931. Most unidentified but good images. https://audiovis.nac.gov.pl/haslo/126:23/

Pitt Rivers Musem, Wilfred Thesiger Collections https://www.prm.ox.ac.uk/search/site/thesiger%20collection

Bibliotecha Alexandrina 
https://en.wikipedia.org/wiki/Bibliotheca_Alexandrina
http://www.bibalex.org/en/default

Craver Skull Collection, at Carnegie Museum of Natural History, Pittsburgh, Pennsylvania
http://www.CarnegieMNH.org