Charlie, Well, back to the books. Evaline was his favorite sis. george washington was his brothers name. But the Marguerite you mention was at least 50 years older then my Grandmother. I have found that both the names Edythe (along with this spelling) and Marguerite, though uncommon names on the whole, were common among the Baldwins.
It was Mary Baldwin Morin who claimed to be a sister, and that William and Nancy had 15 children. Going to check morre out about her, this may be my family.
I'm afraid I am again going to break a few hearts in my family,I already did it with Pocahontas and Ceasar Rodney.