Conversation so far:
When was David Gilmour Born?
David Jon Gilmour was born on 6 March 1946.
Where was David Gilmour born?
David Jon Gilmour was born in Cambridge, England.
What was the name of David Gilmour's mother?
David Jon Gilmour's mother was mother, Sylvia (née Wilson),

Question: what did his mother do?
Self-contained rewrite: what did David Gilmour's mother do?