Alabama Department of Archives and History, ADAH
American Geographical Society, AGS
Costin Family Papers, private collection of Michael Costin and Mary Gibson
Fawcett Family Papers, private collection of Rolette de Montet-Guerin
Fundação Biblioteca Nacional, Rio de Janeiro, Brazil, FBN
Harry Ransom Center, The University of Texas at Austin, HRC
Imperial War Museum, IWM
National Library of Scotland, NLS
National Museum of the American Indian Archives, Smithsonian Institution, NMAI
Percy Harrison Fawcett Papers, Rare Book, Manuscript, and Special Collections
Library, Duke University, PHFP
Rimell Family Papers, private collection of Ann Macdonald
Royal Anthropological Institute, RAI
Royal Artillery Historical Trust, RAHT
Royal Geographical Society, RGS
The National Archives, Kew, Surrey, TNA