Conversation so far:
Who is Henry Peavey?
Henry Peavey was the cook and valet of Hollywood silent film director William Desmond Taylor. Peavey worked for Taylor for six months prior to Taylor's murder in 1922.
Where did Henry Peavey find William Desmond Taylor's body?
William Desmond Taylor's body was found inside his bungalow at the Alvarado Court Apartments, 404-B South Alvarado Street, in Westlake, Los Angeles, a trendy and affluent neighborhood.
How did Henry Peavey know Taylor?
Peavey was William Desmond Taylor's valet.

Question: How long had he work for him?
Self-contained rewrite: How long had Henry Peavey work for William Desmond Taylor?