Gonne was evidently a local man, and may have traded as a mercer, since in the summer of 1424 he was pursuing two members of that trade (respectively hailing from Shepton Beauchamp and Totnes) for debts of £6 13s. 4d. and 40s. However, at other times he is known to have dealt in commodities such as lead and iron nails.
There is some doubt over Gonne’s membership of the Parliament of 1425, for although he was clearly elected by the burgesses, and his name was entered on the sheriff’s indenture alongside that of William Gascoigne II, on the schedule which accompanied the indentures to Westminster Gonne’s name had been erased and replaced by that of John Pitt*, who was returned for Bridgwater to every other Parliament between 1423 and 1429. As Pitt’s name had clearly been entered at a later date, it seems reasonable to suppose that it was in fact he, rather than Gonne, who took the borough’s seat in 1425.
Gonne’s local prominence may have brought him to the Crown’s attention, and in the summer of 1421 he was appointed one of the royal customs collectors in his local port. At the same time, he and his fellow collector, Richard Dynt, were also appointed controllers of the tronage and pesage, but (probably on account of the evident conflict of interest) were replaced in that post by Edward Cullyford* within two days.
The date of Gonne’s death has not been established, but it may have occurred not long after his final spell in the Commons, as he ceased to attest local deeds about that time. The execution of his will was entrusted to his widow, Alice, who apparently went on to marry the local yeoman Robert Grene.
