Any advice on tracking someone who was born at Fort Cumberland? GGGgrandfather James Hannan(Hannon) baptised at St Mary's, Portsea on 24 May 1793. trying to track down the parents John and Rebecca Hannan (Hannon) possibly a Royal Marine. Have come to a complete standstill because I am unable to visit the Royal Marine Museum/archives. Any help would be grateful. Cyndy Hannan Queensland, Australia