c. 1865, Photograph, B 23344
William Ranson Mortlock, born Melbourn near Cambridge, England, he came to South Australia in 1843, aged 22. After first purchasing Yalluna Run near Port Lincoln he became a major landholder on Eyre Peninsula and in the North of South Australia. In 1850 he married Margaret Tennant, and they had four children, Jessie (1851), Mary (1853) Florence (1856) and William Tennant (1858). MHR for the seat of Flinders May 1868 to Mar. 1870, Dec. 1871 to Jan. 1875 and Apr. 1878 to Mar. 1884, William died at his Medindie property, Avenel House, 10 May 1884, and was buried in the North Road Cemetery.