This is some info on PA GOLDEN from a book John Gordon wrote:
“Pennsylvania Golden pawpaw - ripens early September to October. The smooth, thin, pear-like skin turns yellowish as the flesh softens on the tree. The flesh is yellow-orange. The tree goes dormant by October, dropping pale yellow leaves with its fruit. The trees are found growing in talus formations in gaps through the mountain ridges of Pennsylvania. Pennsylvania golden pawpaws can have a chemical-coffee taste if ripened under hot dry conditions (This may be another case of ripening for the wrong reason, therefore not really ripening.). The selections Zimmerman and McKay have a mild flavour. Dr. L. H. MacDaniels named a seedling Pennsylvania Golden the “Zimmerman” for this devoted breeder of pawpaw (MacDaniels’ seed source). McKay is also traced back to Dr. Zimmerman. Several Pennsylvania nurserymen have distributed selections of pawpaw under the name Pennsylvania Golden. They gathered root sprouts from favourite groves and pampered them with mulch and water for a year before distribution. We are continuing this line as PA Golden because the typical fruit is pure confection with no hint of green pepper flavour (pawpaw scent), rubbery texture, or watery texture in its flesh.”
Here is a link to his book. It’s a great source of info on nut trees/grafting/propagation/persimmons and paw paws. I visited him in 2006 and purchased his book and some trees.