He took part in George Rogers Clark's celebrated Illinois campaign in 1778, and fought in many other actions during the war.

The importance of the Illinois campaign has been the subject of much debate.

The Illinois campaign was funded in large part by local residents and merchants of the Illinois country.

He was the only American officer killed during the Illinois campaign.

Consider an Illinois campaign in 1984.

He financed George Rogers Clark with $8,000 for his Illinois campaign, which was never reimbursed.

But his Illinois campaign struggled despite endorsements from the state's two largest newspapers.

He served under George Rogers Clark in the Illinois campaign of 1778-79 against the British.

George Rogers Clark's Illinois campaign of 1779 was one of the most notable operations in this department.

He went on to serve in a number of capacities in local and national politics, initially specializing in fundraising for Illinois campaigns, and then nationally.