William Willan (December 8, 1615 – December 20, 1697) was the 11th great-grandfather of Cometan, classified as one of Cometan’s distant paternal ancestors in the McKerney family line. Born in Dent, Yorkshire (in modern-day Cumbria), William was the son of Edmund Willan (1573 – 1640) and Anna Fawcett (1588 – 1640) and the husband of Margaret Baynes (1616 – 1694) whom he married on 2nd December 1638 in Dent. William is known to have had at least one son with Margaret named James Willan who was born in 1653. William
In Cometanic ancestry, William is categorised as part of the 13th generation retrograde, classifying him as a distant ancestor of Cometan.