Unfortunately we recently moved so a lot of my records are presently in storage. However, Southern appears in my husbands family line as his great aunt Jemima Scott married Edward A. Southern/Sotheran in Howick Co. Fordwich. Edwards father was John his mother was Jane Crosby, and if memory serves me I believe John's mother was Esther. Edward is buried in Fordwich public cemetary with Esther (his mother) and his father as well. There is also a family Sotheran plot which is abandoned now but some of the stones are readable.
Give me some time and I'll forward the information I have. You can reach me at my home email if that's easier firstname.lastname@example.org