Nesham’s origins are obscure, but he appears to have begun his career in the supervision of the search for those evading payment of customs dues. Although his early career, probably either as a clerk in the Exchequer at Westminster or as a minor official in one of the ports, is shrouded in mystery, in September 1419 he was appointed as controller of the search in the five most important ports on the east coast of England between Newcastle-upon-Tyne and Great Yarmouth. This appointment, made during the King’s pleasure and against a background of allegations of malpractice in the collection of the customs, demonstrates the high regard in which he was already held by this date. Eighteen months later he was made controller of customs and subsidies in Ipswich, a post he held until new appointments were made at the start of Henry VI’s reign.
Nesham completed his move to the south-east in 1426, when he was appointed searcher in two of the Cinque Ports, Sandwich and Dover. He may have owed this appointment to the influential warden of the Ports, Humphrey, duke of Gloucester. Nesham clearly exercised his office in person and several pieces of evidence point to his activity as searcher in the late 1420s. In August 1429, for example, he confiscated 28 barrels of green ginger from a Genoese carrack anchored in Sandwich. On the following 3 Oct. he reported the seizure to the barons of the Exchequer and, four days later, he brought the goods to the Exchequer in person. There, following the customary public proclamation and valuation, they were sold, the buyers being Thomas Walsingham†, a London vintner, William Warner, Nesham’s colleague in the customs service at both Ipswich and Sandwich, and William Soper*, the keeper of the King’s ships, men with whom Nesham was undoubtedly familiar.
On 6 Feb. 1432 Nesham was involved in one of the most notorious events of Henry VI’s minority. While at Dover to meet the King on his return from France, Gloucester learnt that Cardinal Beaufort, then in Calais, had ordered his treasure to be shipped over to him. Since the cardinal had not secured a licence to export precious metals, Gloucester ordered Nesham to seize the four great coffers being secretly loaded on board the Mary of Winchelsea at Sandwich.
In January 1437 Nesham travelled to Westminster for his second Parliament. On this occasion there is nothing to suggest that his election was influenced by Gloucester, although the Parliament’s business was once again dominated by the duke’s concerns, especially regarding the defence of Calais and the war in France. It is not clear how long he attended the Commons and the accounts at Dover merely record the payment of wages of £4 (a round figure probably suggesting that the conditions of his service had been agreed in advance). As in 1432, the payment of his wages was a slow affair and the debt does not seem to have been settled until 1440.
In December 1442, after a gap of ten years, Nesham was reappointed searcher in the ports of Dover and Sandwich.
Little evidence of Nesham’s personal affairs survives. He was occasionally involved in litigation in the court at Dover. For instance, in June 1433 he had brought a plea of debt against Thomas Walcote and submitted, on pain of £100, to the arbitration of a panel of four jurats.
