There is no Christopher Ward listed in the "List of Officers of the U.S. Navy and of the Marine Corps 1776-1900", and he is not listed in any of the Navy Registers from 1861 to 1867. He is also not listed in my 1863 Confederate Navy Register or in the "Historical Register of USRCS (Revenue Cutter Service) Officers 1790-1914. Sorry.
Is it possible he was not an officer?
Bob Birmingham