Question: When did Olave Baden-Powell's husband die?
Sentence (from "Olave Baden-Powell"): Olave St Clair Baden-Powell, Lady Baden-Powell, GBE ("née" Soames; 22 February 1889 – 25 June 1977) was the first Chief Guide for Britain and the wife of Robert Baden-Powell, 1st Baron Baden-Powell, the founder of Scouting and Girl Guides.
Relevant evidence: Yes