By 1915 his net worth was estimated at $8,000,000 (approximately $ today). With James A. Gilmore's persuasion, Weeghman took control of the Chicago Whales, and he built a new steel-and-concrete ballpark, Weeghman Park, for them to play in.
By 1915, his net worth was estimated at $8,000,000 (approximately today). James A. Gilmore convinced Weeghman to take control of the Chicago Whales and build a new steel-and-concrete stadium named Weeghman Park for them.