George Mayo

George Mayo (8 January 1807 from the days of the brig Rapid or earlier, nursed him in his final days, and was the sole beneficiary of his will. The Mayos lived for a time at Light's "Thebarton Cottage".

On the 200th anniversary of Maria Gandy's birth on 23 November 2011, a rectangular memorial was unveiled on the corner of Albert and Maria Streets in the inner western suburb of Thebarton near the site of their cottage, to honour Maria. On each of four sides is an inscription celebrating her roles as pioneer, settler, carer and mother.

George and Maria's family included: Mary Jane Mayo (17 April 1841 – 22 June 1934) married Rev. Richardson Reid (1834 – 30 December 1898) on 4 January 1871. He was incumbent of Trinity Church, Adelaide Kate Mayo (1843 – 18 March 1834) married Dr. Alexander Stewart Paterson (c. 1835 – 6 January 1902) on 14 April 1868. Paterson was Colonial Surgeon, associated with W. L. Cleland. George Gibbes Mayo (1845 – 12 August 1921) was a member of John McKinlay's 1865 expedition to the Northern Territory, lived at Hill Street, North Adelaide. Among the possessions he inherited from his father was a priceless self-portrait in oils by Col. Light. This was gifted to the Art Gallery of South Australia in 1905 on condition that the State Government contribute £1,000 towards the replacement monument to the Colonel in Light Square. He married Henrietta Mary Donaldson (1852–1930) in 1877. Among their children were: Dr. Helen Mary Mayo (1 October 1878 – 13 November 1967) women's health pioneer (George) Elton Mayo (26 December 1880 – 7 September 1949), noted psychologist Olive Mayo (1883–1896) Sir Herbert Mayo (1885–1972), noted jurist

Mary Penelope Mayo (1889–1969) John Christian Mayo (1891–1955) Their residence was on the north-eastern corner of Franklin and Morphett streets in the city.

He married again in London, to Ellen Anne Russell (15 February 1817 – 21 July 1901) on 19 February 1852. Ellen Stuart Mayo (c. 1853 – 3 January 1946) married Arthur George de la Poer Beresford (c. 1853 – 27 March 1924), lived 217 Jeffcott Street, North Adelaide.