She moved to Sydney, Australia in 1878, and in 1882 to Fairymead, a sugar plantation near Bundaberg, Queensland owned by her brothers Arthur, Horace, and Ernest Young.
In 1889, Government Inspector Caulfield noted that the behaviour of some South Sea Islanders had been improved by religious instruction.
[1] Stressing "salvation before education or civilization," it aimed to prepare the imported labourers for membership in their local established churches when they returned home.
[2] In 1904 she led groups of white missionaries to Malaita in the Solomon Islands, hoping to nurture the newly established churches of her protégés.
Young continued to administer the organization, from Sydney and Katoomba, New South Wales, and made annual trips to the island until 1926.