Donna: Thanks. Received your e-mail attachment. I too have seen Mark Snelling (and Asa Snelling, his son) referred to as mulatto. But, as I understand it, in those times, mulatto was used to refer to persons of dark complexion, and not necessarily one of African ancestry. I read the PBS information referring to Mark Snelling as a mulatto and inferring he was of African ancestry, but I think this was an error in interpretation of the term as it was used in the 18th century. But the information that Mark Snelling may have come from Spain also explains the designation of mulatto.