Who is Brother Dave from My Louisiana Sky and what is their importance?

Brother Dave is the Baptist minister.

Our preacher, Brother Dave, said Catholics celebrated Jesus dying while Baptists celebrated Jesus rising from the dead.

After Sunday school I sat between Momma and Daddy, waiting for Brother Dave's long sermon. Brother Dave came down the aisle, greeting everybody. Before he preached, he leaned his broad chest over the pulpit and asked if there were any announcements.