The only connection Homegrown has to the Schwinn name is that Questor, the current owners of the Schwinn name at that time had paid for the right to use it.
Under contract with Questor, two different job shops built the Homegrown frames. Probably the biggest was Anodizing, Inc of Portland and then Yeti of Golden, Colorado. Most of the components were Shimano and the suspensions, both front and back were Rockshox. The Homegrown was nothing but a Zaskar knockoff.
The Homegrown bike had nothing to do with Schwinn.
The Last Family Schwinn bicycle was built in Greenville, Mississippi and rolled out the door on October 4, 1991. Let's see if we can find out who owns that bike.
I've got 9301. Who can beat me.