William Duff, 1st of Muirtown (1707-1782) (1707–1782) Parents Catharine Duff Alexander Duff Children Magdalen Duff Katherine Duff Alexander Duff, 2nd of Muirtown Anne Duff Mary Duff Jean Duff John Duff Katherine Duff Siblings Katherine Duff Janet Duff John Duff Robert Duff, 4th of Drummuir James Duff Mary Duff Anne Duff Alexander Duff William Duff Partners Mary Baillie