Conversation so far:
When did Billy Graham begin his ministry career?
1943
Where did Billy Graham work when he began his ministry career?
Graham briefly served as pastor of the First Baptist Church in Western Springs, Illinois.
How long did Billy Graham work for the church?
From 1943 to 1944

Question: What did Graham do for the church during this time period?
Self-contained rewrite: What did Billy Graham do for the church from 1943 to 1944?