I have two Jarman lines listed in New South Wales, but only from early 1800's 1. Adam Jarman, son of Henry Jarman and Mary Santer, born 1856 in Foxground via Kiama, NSW, married Emmeline Oke in 1877 in Shoalhaven (Nowra), NSW. 2. John Thomas Jarman, son of Abraham Jarman and Dinah Cook, born 1868 in Paddington, Sydney, NSW, married Lydia Ann Soady Oke in 1893 in Nowra, NSW.
Not much information on ancestors but a good bit on descendants.