William Cunynghame British Member of Parliament (1747-1828) (1747–1828) Parents Lady Mary Montgomerie Sir David Cunynghame of Milncraig, 3rd Bt. Children Frederick Alexander Cunynghame Robert Cunynghame George Augustus Frederick Cunynghame Sir David Cunynghame of Milncraig, 5th Baronet Mary Cunynghame William Augustus Cunynghame Francis Cunynghame James Stuart Wortley Cunynghame Siblings Ann Cunynghame James Cunynghame Elizabeth Cunynghame David Cunynghame Mary Cunynghame Margaret Cunynghame Alexandre Cunynghame Partners Mary Udney Frances Myrton