Chapman’s father was mayor of Newcastle at Elizabeth’s accession, but died in 1566. Chapman himself had acquired his freedom as a Newcastle Merchant Adventurer by 1577, when he took on his first apprentice, and shortly thereafter he joined the municipal hierarchy, serving as sheriff in 1581-2 and mayor in 1586-7. According to his funeral monument, he also became a freeman of London, joining the Clothworkers’ Company, presumably in order to further his business interests in the metropolis.
In a consortium the Hostmen formed for the shipment of coals in 1603, Chapman was allocated a quota of 18,900 tons, around 10 per cent of the annual total, making him one of the largest suppliers on the Tyne. However, the Company’s monopoly was hotly contested by rivals within the town, who sued the Hostmen before the Council in the North for denying membership of their Company to other Newcastle freemen. In July 1603 Chapman and William Jenison* were dispatched to York to contest this suit, but the Council fixed the entry fine for those wishing to become Hostmen at the modest sum of £2 13s. 4d. The dispute was apparently settled on 17 Jan. 1604, when 15 new freemen were admitted to the Company, and at the parliamentary election which took place a few weeks later two Hostmen, Sir George Selby and Chapman, were returned.
Chapman apparently spoke at the second reading of the drunkenness bill on 27 June 1604, but his words went unrecorded. As a merchant from a major northern port, he was named a commissioner for the Union in 1604, and later signed the Instrument of Union which the commission produced, but he expressed no recorded opinion on this contentious subject.
Aside from his recorded activity in the Commons, Chapman was active on his constituents’ behalf in other ways. He and Selby presumably opposed a bill to repeal a statute of 1530, under which the Hostmen claimed a monopoly of lading coal on the Tyne, which was rejected on its second reading in the Commons on 30 May 1604, and in 1606 both men successfully petitioned Robert (Cecil†), 1st earl of Salisbury to quash the passage of a similar measure in the Lords.
In 1610 Chapman refused to pay the first half of his £25 assessment towards the London Clothworkers’ share of the Ulster Plantation. As two of the Company’s wardens were arrested for failing to produce their full quota, it may have been as a punishment that Chapman was nominated for election as a London alderman in January 1611. Having been chosen, however, he quickly paid a fine to be excused, and appealed against his contribution towards the Plantation.
