Question: William Alexander Watson Sheldon (18 January 1907 – 1 November 1999) was an Irish politician and farmer, he was re-elected as an independent or nonpartisan politician starting in which year? 
Sentence (from "William Sheldon (Irish politician)"): He was re-nominated to the Seanad in 1965 and 1969, and he retired from politics in 1973.
Relevant evidence: No