I do know the Upper Ground Sweet Potato it is a Cucubita moschata. So it can definitely cross pollinate with the Seminole. I know to identify female flowers in the evening, when they look ready to open the next day, and tie them shut to keep them closed. Plus at least three male flowers. Then, the next morning, open the female flower, carefully pollinate with the males, then tape it closed again so no insects can get it. As curious as I am to cross varieties of squash, I want to maintain non crossed seeds too, since heirloom varieties are so important!
Squashes are important to my family, we eat so much of it. This year I think I need to buy a dehydrator so I can dehydrate our ample squash. Plus it'll help preserve so many other garden foods. Mmm, dehydrated cherry tomatoes on homemade pizza!
Dickinson is a moschata . Tennessee sweet potato is a white almost round cushaw . Thelma Sanders sweet potato is a cream colored acorn type c. pepo .