"South Africa, Cape Province, Civil Records, 1840-1972," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:WKY4-DXPZ : 10 March 2021), Bertram Willis Heginbotham, 16 Aug 1952, Cape Province, South Africa; citing National Archives, Pretoria; FHL microfilm .
"South Africa, Cape Province, Probate Records of the Master of the High Court, 1834-1989", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QP74-4K98 : 27 April 2020), Bertram Willis Heginbotham, 1944-1953.
"South Africa, Cape Province, Probate Records of the Master of the High Court, 1834-1989", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:HVPM-6FMM : 27 April 2020), Bertram Willis Heginbotham, 1952-1953.