Isobel (?)1
With three other sons.1 Her married name became St. Clair.2
Children of Isobel (?) and Sir John St. Clair of Herdmanston
- [S37] BP2003 volume 3, page 3627. See link for full details for this source. Hereinafter cited as. [S37]
- [S6286] Clan MacFarlane and associated clans genealogy, online http://www.clanmacfarlanegenealogy.info. Hereinafter cited as Clan MacFarlane.
- [S37] BP2003. [S37]
John St. Clair of Herdmandston and Polwarth1 
Children of John St. Clair of Herdmandston and Polwarth and Katherine Home
- Marian St. Clair+2
- Margaret St. Clair+2 d. 1490
- [S6286] Clan MacFarlane and associated clans genealogy, online http://www.clanmacfarlanegenealogy.info. Hereinafter cited as Clan MacFarlane.
- [S37] BP2003 See link for full details for this source. Hereinafter cited as. [S37]
Marian St. Clair1
Her married name became Ker.2 She was also known as Mariota St. Clair.2 Her married name became Home.
Children of Marian St. Clair and George Home of Wedderburn
unknown Crichton1
Children of unknown Crichton
- [S37] BP2003 volume 3, page 3627. See link for full details for this source. Hereinafter cited as. [S37]
Margaret St. Clair1
Her married name became Home.3
Child of Margaret St. Clair and Patrick Home
- Alexander Hume of Polwarth+3 d. May 1532
- [S37] BP2003 volume 3, page 3627. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S6286] Clan MacFarlane and associated clans genealogy, online http://www.clanmacfarlanegenealogy.info. Hereinafter cited as Clan MacFarlane.
Ben Felix Tweedy1
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
John Bigod1 
Child of John Bigod and Amy (?)
- John Bigod+1 d. Feb 1426
- [S6286] Clan MacFarlane and associated clans genealogy, online http://www.clanmacfarlanegenealogy.info. Hereinafter cited as Clan MacFarlane.
Sir William St. Clair of Herdmanston1
On 10 August 1471 he settled litigation with his nieces by his getting Herdmanstone and his nieces Polwarth and Kimmeringhame.1
Child of Sir William St. Clair of Herdmanston
- John St. Clair of Herdmanston+2 d. 9 Sep 1513
John St. Clair of Herdmanston1

In 1481 he had sasine of his lands.1 On 20 April 1505 he had a new Charter under the Great Seal of Herdmanston.1 He fought in the Battle of Flodden on 9 September 1513.1 He had two other lawful sons and two illegitimate sons.1
Child of John St. Clair of Herdmanston and Marion Cockburn
Marion Cockburn1
And was probably killed in action Battle of Flodden (English rout of Scots) (with two lawful sons and two bastard sons).1 Her married name became St. Clair.
Child of Marion Cockburn and John St. Clair of Herdmanston
