Actually I saw your de Bohun query on Genialogy.com. Are you connected to Edmund Bohun, Chief Justice of SC, d Charleston 1699. I am, in a way. If you haven't already discovered the records of this well-researched family, I can send you a tree from 1066-on compiled by S. Wilton-Rix in the 19th C. I have contacted some of Edmund's American descendents from his grand daughters. A younger son went back to England and took up the Bohun inheritance. His descendent, my gg grandfather emigrated to Australia in 1830's. The inheritance is long gone!
Regards
Christine Hyde