I planted the seedlings in the front yard this weekend, following Jerry Dedon's advice. The seedlings were all placed in a row down the western edge of my front yard where they should receive good filtered sunlight.
Danny also gave me several pawpaw seeds, including seeds from Mango, Susquehanna, MD-9, MD-14, LSU Trial Orchard selected seeds, and some Louisiana native seeds for rootstocks. I plan on planting these, and grafting the Mango and Susquehanna onto the two unlabeled trees out front.