Nothing is now known for certain about this MP’s family background, although he may perhaps have been connected with the Thomas atte Hethe alias Grendon, who sold the Huntingdonshire manor of Sawtry Beaumes to Sir William Moigne during the early 1390s.
By the date of his first return to Parliament in December 1421 (when, interestingly enough, he sat with his future adversary, Robert Stonham), Hethe had already served a term as escheator of Cambridgeshire and Huntingdonshire, and he was also sitting on the local bench. He had, moreover, attended the Huntingdonshire parliamentary elections of 1419, and was to do so again on at least five subsquent occasions.
Hethe died in, or shortly before, 1446, when his will was proved before the bishop of Lincoln. Although he had by then sold off some of his farmland in Grafham, the manor itself passed to his widow, who was to enjoy a life tenancy on the condition that she did not remarry. Hethe had a son named Richard upon whom the property was entailed.
