John Hardacre (1619 – ????) was the 10th great-grandfather of Cometan, classified as one of Cometan’s distant paternal ancestors in the Hardacre family line. Born in Kildwick in Yorkshire, John was the offspring of Thomas Hardacre and Maria Scolefield. John went on to marry Mary Lupton and to have had at least one son named Thomas in 1649. The details of John Hardacre’s detail still remain unknown or unverified.
In Cometanic ancestry, John is categorised as part of the 12th generation retrograde, classifying him as a distant ancestor of Cometan.