John McCreath, a Stone Mason, married Helen Gray. They had six children:
James McCreath born 27 November 1775, Mauchline
Thomas McCreath born 2 March 1777, Mauchline
Marrion McCreath born 1 August 1779, Mauchline
Janet McCreath born about 1780-81. Married Charles Robb
Elizabeth McCreath born 27 March 1785, Knockdon, Maybole.
Margaret McCreath born 13 May 1790, Knockdon Maybole
No further biographical information has been found.