Oswald married twice. His first wife was Louisa or Lucy Johnstone; the poet Robert Burns composed his verses, "O wat ye wha's in yon town?" to her. She died of consumption at Lisbon.[4] Oswald then married in 1817 Lady Lilias Montgomerie, daughter of Hugh Montgomerie, 12th Earl of Eglinton, who was widow of Robert Dundas MacQue(e)n.[5][6]
Thomas Spencer Lindsey married in 1818 Oswald's daughter Margaret Hester.[8] Margaret Hester Oswald was described in an obituary as "the only daughter of the late Richard Alexander Oswald, Esq. of Auchencruive"[9][10] Oswald's will shows that a beneficiary was a granddaughter Margaret Nina Lindsey.[11]
^Death Announcement Margaret Hester Lindsey nee Oswald, The Times, Thursday, 22 November 1855; pg. 1; Issue 22218; col A in on-line database [2] (subscription required) accessed 26 November 2011
^Smith, John Guthrie & Mitchell, John Oswald "The Old Country Houses of the Old Glasgow Gentry" (James MacLehose & Sons, Glasgow, 1878)[3]
^Will of Richard Alexander Oswald, "Prerogative Court of Canterbury wills (1384–1858)" [4] in National Archives on-line database (purchase required) purchased 22 November 2011