Question: What is the date of death of David Sheldrick's wife?
Sentence (from "David Sheldrick"): Major David Leslie William Sheldrick, MBE (23 November 1919, Alexandria, Egypt — 13 June 1977, Nairobi, Kenya) was a Kenyan farmer and park warden, in memory of whom the eponymous David Sheldrick Wildlife Trust (DSWT) was created by his widow, Daphne (later Dame Daphne Sheldrick) in Nairobi.
Relevant evidence: Yes