William H. Mosby, originally of Albemarle Co. Va, was the brother of John Singleton Mosby. William moved to Bedford Virginia after the war and married Lucie Boothe Dec 4, 1872. William and Lucie had several children; their first wasAlfred D. born Sept. 13, 1873
By the way, William and John's parents were Alfred D. and Virginia J. McLaurin Mosby.
I hope this is your Mosbys.
I am trying to find out where the Mosby's all went. William H.died in Bedford, but I dont know where his descendants ended up.