A native of Ireland, Overey settled in Southampton before October 1388, when in association with John Polymond† he arrested a barge belonging to Sir John Roches†, the former captain of Brest in Brittany, in order to recover sums of money owing for corn supplied to victual the garrison. In response to the proclamation requiring Irishmen to return to their home country on pain of forfeiting their possessions, in July 1394 he paid £5 for a licence to remain in Southampton, where he had established his business as a merchant and was currently serving as the town’s steward.
Few details of Overey’s trading activities are recorded, although by the late 1390s he had entered a partnership with Geoffrey Hebbe*, a merchant from Chichester. In May 1398 in the staple court at Chichester they received from the Sussex esquire Robert Tauk† a bond in £9 12s. 4½d. Tauk failed to repay them before he died, and it was not until June 1410 that the two creditors were given temporary possession of his manor of Westhampnett and other holdings worth £7 p.a. as compensation. Similarly, in 1399 Overey and Hebbe received a bond for £6 for merchandise sold at the staple to John Slyfhurst of Midhurst and John atte Mill, but in this case their debtors escaped justice for more than five years, and even then although Slyfhurst was imprisoned at Guildford his associate could not be found.
Overey’s dealings with the Italian merchants who came to Southampton led to his marriage, late in life, to an Englishwoman named Agnes whose former husband, Bartolomeo Marmora, the resident Florentine agent in the port, had taken out letters patent of denization in 1417. Overey brought up her children, who included Laurence Marmora alias Overey, and assisted her to recover debts owed to her late husband Bartolomeo. For instance, in the Easter term of 1425 he and Agnes brought an action in the court of common pleas against a dyer from Newport, Isle of Wight, for the sum of £3.
Overey was engaged in the affairs of Southampton over a period of 33 years, during which he officiated as mayor for two terms and alderman (and ex officio j.p.) for at least 12. Curiously, it was not until his participation in local government had apparently ended that he was elected to the Parliament summoned to meet at Leicester in February 1426. Perhaps his willingness to travel to Leicester may be explained by his suit against Mascall’s executors and his petition to the chancellor Beaufort. Overey last witnessed a deed in Southampton on 19 Feb. 1433,
