Catherine Fairclough (née Ashcroft; c. 1615 – November 28, 1673) was the10th great-grandmother of Cometan, classified as one of Cometan’s distant paternal ancestors in the Stringfellow family line. 

Born and raised in Tarleton near Croston in Lancashire, Catherine is known to have married George Fairclough (1595 – 1660), although the identities of both of her parents still remains unknown. Catherine is also recorded as having birth to at least one child named Robert in 1635. She is understood to have died at the age of fifty-eight still in Tarleton, Croston, Lancashire.

In Cometanic ancestry, Catherine is categorised as part of the 12th generation retrograde, classifying her as a distant ancestor of Cometan.

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