Remain of Cement factory in Maria Island, Tasmania, Australia From the 1880s, the Italian entrepreneur Diego Bernacchi set up island enterprises including silk and wine production and a cement factory, quarrying limestone deposits at the Fossil Cliffs for the raw material. At the height of its fortunes in the early 20th century, Darlington had hundreds of residents and several hotels. By 1929 all of these ventures had failed for a number of reasons including the Great Depression, poor quality limestone and competition from mainland producers, who were not burdened with high costs of transportation. For a period of 40 years until the late 1960s the island was dominated by farming. The South Island was farmed by John Robey, a South African, with his wife Hilda. Robeys Farm is located on the west side of the south island, and although essentially complete in a "just walked away" fashion as late as the early 1980s, the location has since been extensively vandalized, and the farmhouse further damaged by weather and neglect by the Parks and Wildlife Service.