*Sir William Hay of Yester
born 1359 Locherworth, Midlothian, Scotland
died 1421

father:
*Sir Thomas Hay (Haya) of Locherworth Sheriff of Peebles Constable of Scotland

mother:
*Joanna Giffard of Yester

siblings:
unknown

spouse:
*Alicia Hay
born about 1372 Erroll, Perthshire, Scotland
died after 1451

children:
Margaret Hay born about 1398 died after 22 April 1484
*Sir David (of Loch & Yester) Hay born about 1400 Lockerworth, Scotland
died before 2 September 1478
Thomas Hay
Edmund Hay
Jean Hay
Alice Hay born 1405 Locherworth, Edinburgh, Midlothian, Scotland
Elizabeth Hay

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com