Conversation so far:
What is important about the south dakota years?
Baum was born in Chittenango, New York in 1856 into a devout Methodist family.
Who were his parents?
Cynthia Ann (nee Stanton) and Benjamin Ward Baum.
Did he have siblings?
and was the seventh of nine children.

Question: Where did he go to school?
Self-contained rewrite: Where did Baum go to school?