Unfortunately, at the moment I don't have anything on Lorraine Fiona Chetwynd INGLIS m: _ _ _ _ HUTH, Scotland and emigrated to Australia 1950; returned to Scotland 1953. My major lines of research are for SHEWAN, MORTON, DIAMOND and my husband's French ancestors SICARD de CARUFEL and MACHABEE. The details relating to the marriageof my INGLIS ancestors was extracted from the record was purchased from the GRO and I bought the 1881 Census for the British Isles so can do lookups at will. The Family Search site has one Chetwynd in Australia -- Edward Burton Louey Chetwynd born 18 Aug 1907 in Cheltenham, South Australia, Australia / died 28 Dec 1972 as well as about 22 Chatwins in Tasmania. Do you have any further data? For my Inglis connection is was easier to work from less common names.
If you do have any more data concerning Lorraine, let me know and I will see what I can do. Happy hunting. Bonnie