William Ranson Mortlock (1821–1884) arrived in South Australia on the Imaum of Muscat on 9 November 1843. Along with his son, William Tennant Mortlock (1858–1913), grandson, John Andrew Tennant Mortlock (1894–1950), and John's wife Dorothy Elizabeth Mortlock (1906–1979), the Mortlocks have 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.
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0. William Mortlock (1747–1807)
0. Simon Mortlock (1749–1831) married Anne Berry[1]
William Ranson Mortlock (1821–1884), grazier and politician, was born at Moat House, Melbourn, Cambridgeshire, England.[3]
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.
Aged 63 he died at Avenel House, Medindie, on 10 May 1884, survived by his wife, son and three married daughters.[3]
William Tennant Mortlock (1858–1913), grazier and politician.
On 28 January 1891 at St. Peter's Church, Glenelg, he married Rosina Forsyth Tennant in a double-wedding with her sister, Clayre Jessie Tennant, daughters of Andrew Tennant.[5] Andrew Tennant was a brother of Margaret, William T's mother - i.e. Rosina and William were cousins. In 1892 he bought Martindale Hall.
He died on 17 August 1913 at Martindale Hall.[3]
John Andrew Tennant Mortlock (1894–1950), benefactor and pastoralist, was born on 30 March 1894 at Mintaro, South Australia, the second of five sons of South Australian-born parents William Tennant Mortlock, grazier, and his wife Rosina Forsyth Tennant.[5]
In 1948 John discovered he had cancer. On 7 December 1948 he married Dorothy Elizabeth née Beech at St Peter's Cathedral, Adelaide.
He died on 15 March 1950 in North Adelaide and was buried in North Road cemetery.[5] He was the last of the South Australian Mortlocks. He left a huge estate which was held in trust and administered by his widow - they had no children.
Dorothy Elizabeth née Beech (1906–1979), benefactor, was born on 5 October 1906 at Clapham, London, the daughter of Ernest Robert William Beech, pawnbroker's assistant, and his wife Elizabeth Lillian, née Beauchamp.[6]
On 7 December 1948 she married John Andrew Tennant Mortlock (1894–1950) at St Peter's Cathedral, Adelaide.
After John's death, Dorothy administered the Mortlock estate. The estate funded, amongst many things, the Mortlock Library of South Australiana. Dorothy died on 10 August 1979 in Adelaide and was cremated - the marriage had produced no children.[6]
In 1926, Rosina and her son John donated £2,000 to the Waite Agricultural Research Institute. In conjunction with Peter Waite's 1924 donation of a large amount of land, these funds were used to establish the Institute at Urrbrae.
In 1936, Rosina and her son John donated £25,000 to establish the "Ranson Mortlock Memorial Research Trust" in memory of her sons William Ranson Mortlock (1891–1892) and Frederick Ranson Mortlock (1900–1936). These funds provided for research by the Waite Research Institute into soil erosion and plant regeneration at Yudnapinna station in 1952.
Martindale Hall is a Georgian-style mansion built in 1879-80 near Mintaro.
In 1892, William Tennant Mortlock bought Martindale Hall.[3]
With help from the J. T. Mortlock estate and Mrs Dorothy Mortlock, the Mortlock Experimental Station was established at Martindale Hall for research into animal production.[3]
John Andrew Tennant Mortlock, developed Martindale Station and built up an impressive collection of artwork which was displayed at the Hall. The Mortlock Family bequeathed Martindale Hall and the estate to the University of Adelaide in 1965.[7][8][9]