In 1842, he married Charlotte Ramsay, granddaughter of
George Ramsay, 8th Earl of Dalhousie. They had two daughters and four sons: • Sir
John Ramsay Slade (16 March 1843 – 4 September 1913) • Arthur Maitland Slade (27 November 1846 – 1847) died in childhood • Maj. Montagu Maule Slade (16 January 1849 – 29 February 1884), killed in action in the
Second Battle of Teb while serving with the
10th Hussars. • Lt.-Gen. Frederick George Slade (15 December 1851 – 16 August 1910), Inspector-General of the
Royal Garrison Artillery headquarters 1902–1906. • Fanny Maule Slade (1845 – 28 April 1875), married George Sackville Lane-Fox • Helen Grace Slade (1854 – 7 April 1932), married Francis Robert Gregson ==References==