Conversation so far:
who was Bob Hope's first wife?
vaudeville partner Grace Louise Troxell.
what did Grace do?
a secretary from Chicago, Illinois, who was the daughter of Edward and Mary (McGinnes) Troxell.
Did they have children?
CANNOTANSWER.
when did they get married?
They were married on January 25, 1933, in Erie, Pennsylvania.

Question: when did they divorce?
Self-contained rewrite: when did Bob Hope and Grace Louise Troxell divorce?