Turns out the "Walnut" mentioned was actually just a different species of Hickory - according to internet picture comparison, it looks like I collected Carya Ovata and Carya Ovalis; I also found one Tulip Poplar "cone" I might try to plant seeds from.
I checked all nuts for insect holes or any case damage and discarded offenders, then
soap washed all the seeds, towel dried, and put them in a bag in the fridge until I am ready to research stratification and germination.
Tom, I looked up and found this study, based on your suggestion:
Forest Service Thousand Canker Disease & Juglandaceae
Based on skimming this briefly, I think I have avoided transplanting the fungus, as the vector is a beetle(of which I have culled insect damaged nuts) and the trees they fell from did not seem to have any cankers (but I can't be 100% sure).
I will re-read this and do some more searching before I take the nuts out of "quarantine" in the fridge - will try to find someone at an extension office to talk to as well.
Experimenting and growing on my small acre in SW USA; Fruit & Nut trees w/ annuals, hoping to get Chickens, rabbits, and in-laws onto property soon.
Long term goal - Furniture & Luthier Stay-at-home farm dad.