George Arbuthnot-Leslie was born 12 March 1847 in Elderslie Lodge, Ockley, Surrey, England, United Kingdom to George Arbuthnot (1815-1895) and Maria Thomas (1824-1899) and died 1 November 1896 of unspecified causes. He married Mary Rose Leslie (1851-1900) 4 August 1875 in Elderslie Lodge, Ockley, Surrey, England, United Kingdom.
|Offspring of George Arbuthnot-Leslie, 3rd of Elderslie and Mary Rose Leslie (1851-1900)|
|William Douglas Arbuthnot-Leslie (1878-1956)|
|George Rupert Arbuthnot-Leslie (1883-1951)|
|Aline Rose Arbuthnot-Leslie (1888-1948)||24 June 1888||5 July 1948||Charles Fox Maule Ramsay (1885-1926) Charles Fox Maule Ramsay (1885-1926) Arthur Michael Cosmo Bertie (1886-1957)|
|Violet Seton Arbuthnot-Leslie (1893-1950)|