 Growth of the township of Proston was therefore slow until a branch railway line from Murgon opened in 1923 facilitating growth.A public hall, school, general store, bulk store, hotel, shop and banks were erected thereafter.Eradication of prickly pear in the late 1920s and the opening of a butter factory by the South Burnett Dairy Cooperative in June 1934 and its pre-war expansion again boosted Proston's development.