Dana - I can't help with Douglas' parents, but I can help with his wife and children. My library has acquired what I believe to be Phebe's Family Bible. It was published almost two decades after Douglas' death so I am not attrributing it to him. If you are interested go to www.chaseyourtale.com and select Family Bibles, then Surnames A, then Phebe Allen from the lists. It is entirely possible some of his children were named after his parents so it might help.