Conversation so far:
What was Daniel Boone's role with the Ohio river?
After the Revolutionary War ended, Daniel Boone resettled in Limestone, then a booming Ohio River port.
Was Daniel Boone a successful businessman?
Daniel Boone kept a tavern in Limestone.

Question: What other business did Boone do at the time?
Self-contained rewrite: What other business did Daniel Boone do while in Limestone?