Lt.-Gen. Day Hort Macdowall, 22nd of Garthland1 
He held the office of Justice of the Peace (J.P.) for Renfrewshire.1 He held the office of Deputy Lieutenant (D.L.) of Renfrewshire.1 He gained the rank of Colonel in the 3rd Buffs.2
Wilhelmina Day Macdowall1
From 1839, her married name became Aitken.
Child of Wilhelmina Day Macdowall and Reverend Robert Aitken
Reverend Robert Aitken1
He had a son.1 He was the Vicar at Pendeen, Cornwall, EnglandG.1
Child of Reverend Robert Aitken and Wilhelmina Day Macdowall
- [S32] BLG2001 volume 1, page 884. See link for full details for this source. Hereinafter cited as. [S32]
Lt.-Col. Lawrence Macdowall1 
He gained the rank of Lieutenant-Colonel in the Renfrewshire Militia.1
Mary Macdowall1 
From 1778, her married name became Houston.
Children of Mary Macdowall and George Houston of Johnstone Castle
- Ludovic Houston of Johnstone Castle+3 b. 10 May 1780
- William Houston+3 b. 18 Sep 1781, d. 6 Feb 1856
- [S32] BLG2001 volume 1, page 884. See link for full details for this source. Hereinafter cited as. [S32]
- [S32] BLG2001. [S32]
- [S6286] Clan MacFarlane and associated clans genealogy, online http://www.clanmacfarlanegenealogy.info. Hereinafter cited as Clan MacFarlane.
Patrick Stirling, 4th of Kippendavie1 
Children of Patrick Stirling, 4th of Kippendavie and Margaret Douglas
- Patrick Stirling, 5th of Kippendavie1 b. 28 Jan 1734, d. 12 Dec 1775
- John Stirling, 6th of Kippendavie+1 b. 22 Dec 1742, d. Jun 1816
- [S6286] Clan MacFarlane and associated clans genealogy, online http://www.clanmacfarlanegenealogy.info. Hereinafter cited as Clan MacFarlane.
Anny Macdowall1 
Her married name became Cunninghame.1
Child of Anny Macdowall and Alexander Cuninghame, 11th of Craigends
- [S32] BLG2001 volume 1, page 884. See link for full details for this source. Hereinafter cited as. [S32]
- [S32] BLG2001. [S32]
- [S6286] Clan MacFarlane and associated clans genealogy, online http://www.clanmacfarlanegenealogy.info. Hereinafter cited as Clan MacFarlane.
Alexander Cuninghame, 11th of Craigends1 
Child of Alexander Cuninghame, 11th of Craigends and Anny Macdowall
- [S32] BLG2001 volume 1, page 884. See link for full details for this source. Hereinafter cited as. [S32]
- [S6286] Clan MacFarlane and associated clans genealogy, online http://www.clanmacfarlanegenealogy.info. Hereinafter cited as Clan MacFarlane.
Betty Macdowall1 
John Spring1 
- [S229] Burke John and John Bernard Burke, A Genealogical and Heraldic History of the Extinct and Dormant Baronetcies of England (1841, reprint; Baltimore, Maryland, USA: Genealogical Publishing Company, 1985), page 501. Hereinafter cited as Extinct and Dormant Baronetcies of England.