Im not sure Buzz is a breeder… more of a fruit hunter and he grafts and makes things available by having a niche nursery. Maybe he has bred some.
Same for Eliza… she seems to be more of a fruit hunter and truth teller and writes some amazing histories.
To get the full story i think you would have to start with Floyd Sonneman. He was a prolific persimmon fruit hunter in the 1900s and grafted the best ones to be found in the US. Somewhere along the line Claypool took some or all of his trees and bred them… then Lehman expanded and when Claypool passed i think Lehman did the best that he could with Claypool’s massive collections.
John Hershey and Donald Compton also had breeding efforts as well as others.
You can probably still visit Sonneman’s farm… as they rent cabins and have bird hunting… supposedly there are still many persimmons left there on the farm… but not sure anyone has done that and posted about it.
You can still find many of the nut trees he grafted as well as a large variety of persimmon trees. He called this area “Experimental Gardens”.
Clark and others have done alot of history and sharing on this forum as well.
Here are some good threads-
Sonneman was obsessed and had the means to travel and find the best of the best to be found and graft them to grow on his IL farm. Its likely that most breeding after that happened either with his trees or trees that he had found. Hard to know exactly… but its a good start.