Yes, this is correct family. James married daughter Agnes. I believe that James father was also named James.He wife was named Ann. Try this link for more info. http://thistleandbee.com/http://thistleandbee.com/
I do have some other info on the family.I have an email from someone who mentions the Louise Crowder Collection of papers, letter and other concerning Chester county familiestaht can be found in the Caroliniana Room at the Univ of SC in Columbia.
I am attempting to identify all of the grandchildren of Robert and Mourning (there are at least 90) and also the great grandchildren.I would apprecitate any input that you might have from your line.