William Ranson Mortlock

William Ranson Mortlock (1821 – 10 May 1884) was a grazier and politician in colonial South Australia.

In 1850 at Port Lincoln he married Margaret, 18-year-old daughter of John Tennant who had arrived in South Australia from Scotland in 1839.

[2] In 1847, he occupied land near Port Lincoln that would subsequently become Yalluna Station, and he resigned his inspector role in 1856.

His son, William Tennant Mortlock, inherited and expanded his pastoral empire and was elected to parliament for his old seat.

[1][7] Along with his son, daughter-in-law Rosina, grandson, John Andrew Tennant Mortlock (1894–1950), and John's wife Dorothy Elizabeth Mortlock (1906–1979), the Mortlock family left the Waite Agricultural Research Institute, the University of Adelaide, the State Library of South Australia, the City of Adelaide and the State of South Australia with many significant and lasting legacies.