(In nearby SE Michigan)
https://en.wikipedia.org/wiki/Willow_Run
Ford produced half of the 18,000 total B-24s at Willow Run, and the B-24 holds the distinction of being the most produced heavy bomber in history."
They were rolling off the line at one per hour at peak.
Tucker(of the Tucker Auto) produced bubble canopies out his garage I think.
Yankee Air Museum | Where History Takes Flight located there has a B-17(yakee lady) and a B-25(yankee warrior) and many other non-flyables. But no B-24 Liberator.