The former Labour MP Bert Hazell (North Norfolk 1964-70) who died earlier this month was the second oldest ex-MP in history. He was 101 and eight months old at the time of his death.
The oldest ex-MP in history is thought to be Theodore Cooke Taylor, an MP from 1900 to 1918 who lived to be 102.
By my reckoning, Michael Foot is now the oldest living ex-MP, though I could easily be wrong on this. He was born in 1913 and so will be 96 this year. Remarkably, Foot first stood for Parliament in 1935.
Foot is one of only four survivors from the 1945 Parliament. The others are Francis Noel-Baker (89), John Freeman (95) and Ernest Millington (92) who was actually elected as a Common Wealth MP at a by-election in April 1945, but switched to Labour and survived until 1950. That makes Millington the only surviving MP from the Second World War.