John Haldane (1693-1726) (1693–1726) Parents Helen Erskine John Haldane Children David Haldane Robert Haldane John Haldane Siblings Margaret Haldane Robert Haldane, 1st of Airthrey and 17th of Gleneagles James Haldane Ann Haldane Helen Haldane Patrick Haldane, 16th of Gleneagles Mungo Haldane Partners Helen Scott