Climbing journal of Peter Frederick Oliver of the Everest expedition, with diagrams., May-June 1936., MS.24664. Correspondence, diaries, literary papers, and photographs, of Lieutenant-Colonel Peter Roderick Oliver, 1921-1944, together with diaries and miscellaneous papers of his mother, Elizabeth Oliver, wife of Major Edward Oliver, Veterinary Advisor to the Indian government, 1905-1946, undated., MSS.24656-24720. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/45648 Accessed September 23, 2024.