The constituent organizations are : Modelled on the National Trust for Places of Historic Interest or Natural Beauty and inspired by local campaigns to conserve native bushland and preserve old buildings , the first Australian national trusts were formed in New South Wales in 1947 , South Australia in 1955 and Victoria in 1956 ; followed later in Western Australia , Tasmania and Queensland .
Local campaigns to conserve native bushland and save old buildings were the forces that led to the first Australian national trusts in New South Wales in 1947 , South Australia in 1955 and Victoria in 1956 .