John FitzGerald Mahon (1858-1942) (1858–1942) Parents Jane King Sir William Mahon, 4th Baronet Children Denis Mahon Siblings Alice Jane Mahon Edward Mahon Gilbert Mahon Ross Mahon Mary Geraldine Mahon Ross Mahon Sir William Mahon, 5th Baronet James Vesey Mahon Partners Lady Alice Browne