Thomas Key (February 23, 1605 – 1660) was the 11th great-grandfather of Cometan, classified as one of Cometan’s distant paternal ancestors in the Taylor family line. Born in Eccleshall, Staffordshire, Thomas was named after his father Thomas Key (1580 -1640) while his mother is recorded as having been Mary Leese (1580 – 1631). Thomas is known to have married Dorothy Ankers (1618 – 1653) and to have raised at least one daughter named Mary Key (1638 – 1680). Thomas is also recorded as having died at the age of fifty-five in Shropshire.
In Cometanic ancestry, Thomas is categorised as part of the 13th generation retrograde, classifying him as a distant ancestor of Cometan.