William married Nancy Croft on 12 Aug. 1712 in St. Cuthbert's, York, Yorkshire, England. Nancy (daughter of Thomas Croft and Frances Thompson) was christened on 5 April 1692 in St. John's, Micklegate, York, Yorkshire, England; died on 12 March 1764 in Rowley, Yorkshire, England; was buried on 23 March 1764 in Rowley, Yorkshire, England. [Group Sheet] [Family Chart]

1. Sir Robert Hildyard, 3rd Baronet was born on 10 July 1716 in York, Yorkshire, England; was christened on 15 July 1716 in York, Yorkshire, England; died on 1 Feb. 1781 in Gilling, Yorkshire, England.
2. Nancy Hildyard
3. Frances Hildyard
4. Elizabeth Hildyard