Richard Alexander Oswald
Oswald died at the age of 70.
Oswald married 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. They had no children and as Oswald did not marry again the family estates passed to his cousin James Oswald.
Other evidence suggests Oswald had at least one child by Louisa Johnston, a son Richard Oswald who married Lady Mary Kennedy.
This is supported by Oswald’s will which also shows that a beneficiary was his grand daughter Margaret Nina Lindsey, who was likely the child of Thomas Spencer Lindsey and Margaret Hester Oswald described as "the only daughter of the late Richard Alexander Oswald, Esq. of Auchencruive"
- Smith, John Guthrie & Mitchell, John Oswald “The Old Country Houses of the Old Glasgow Gentry” (James MacLehose & Sons, Glasgow, 1878) 
- Ayrshire History
- Leigh Rayment Commons constituencies
- The History of Glasgow Volume 3 - Chapter XXIX - A Typical Glasgow Family
- Burke’s Peerage Charles Mosley, editor, Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes (Wilmington, Delaware, U.S.A.: Burke's Peerage (Genealogical Books) Ltd, 2003), volume 1, page 1284 cited on The Peerage 
- Will of Richard Alexander Oswald "Prerogative Court of Canterbury wills (1384 - 1858)"  in National Archives on-line database (purchase required) purchased 22 November 2011
- Death Announcement Margaret Hester Lindsey nee Oswald , The Times, Thursday, Nov 22, 1855; pg. 1; Issue 22218; col A in on-line database  (subscription required) accessed November 26, 2011
- Smith, John Guthrie & Mitchell, John Oswald “The Old Country Houses of the Old Glasgow Gentry” (James MacLehose & Sons, Glasgow, 1878)
Hansard 1803–2005: contributions in Parliament by Richard Oswald