Edward Christian married Isabella Kermeen 26 June 1816. Isabella had consent of parents.
Edward was probably son of Robert Christian and Dorothy Callow of Baldromma, Maughold but please check it for yourself as I haven't researched it. Isabella may have been daughter of William Kermeen and Margaret Joughen who married 1 Nov 1794.
www.familysearch.com can probably give you some more information.