Conversation so far:
When did Billy begin Billy Graham's ministry career?
While attending college, Graham became pastor of the United Gospel Tabernacle and also had other preaching engagements.
Where did he work?
Graham briefly served as pastor of the First Baptist Church in Western Springs.
How long did 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 Graham do for the church during 1943 to 1944?