William Cookson (April 24, 1610 – April 11, 1653) was the 11th great-grandfather of Cometan, classified as one of Cometan’s distant paternal ancestors in the Hardacre family line. Born in Shelton in Nottinghamshire, William is known to have been the husband of Mary Binnington and to have fathered Robert Cookson (1630 – 1685). William is recorded as having died at the age of forty-two.
In Cometanic ancestry, William is categorised as part of the 13th generation retrograde, classifying him as a distant ancestor of Cometan.