Conversation so far:
What was the position of Horace Mann at the Antioch College ?
From September 1852 to Horace Mann's death, he served as President of Antioch College.
How did Horace Mann pass away ?
Horace Mann collapsed shortly after the 1859 commencement and died that summer.

Question: Was Horace Mann ill ?
Self-contained rewrite: Was Horace Mann ill ?