John Durham came from an affluent mercantile family, two members of which rose during the late 13th and early 14th centuries to become aldermen of the City of London. Thanks to the financial success of his ancestors, Durham’s father was able to live the life of a country gentleman at his manor of South Mimms on the Hertfordshire-Middlesex border, although he retained property in the city parishes of Holy Trinity the Less and St. Mary Aldermary. He died in 1368, leaving his widow in possession of his estates until John, their only son, should come of age.
Durham obtained a royal pardon in May 1398, but there is nothing to suggest that this was any more than a formality. Even so, he and John Ludwick, who sat with him in the Parliament of 1399, had particular reason to welcome the Lancastrian usurpation. Less than a month after coming to the throne, Henry IV made the two men farmers of the manor of Weston in Hertfordshire at an annual rent of £41 payable during the minority of Thomas, earl of Nottingham. Their mainpernors at the Exchequer were Sir Philip Thornbury — Durham’s son-in-law — and Nicholas Carew (whose first wife was Ludwick’s stepdaughter), for whom they in turn acted as sureties at this time.
Although he never became a sheriff and only sat briefly on the Middlesex bench, Durham played an active part in local government. Besides serving on a number of royal commissions and collecting taxes at various times in his life, he attended the Middlesex county elections to the Parliament of 1406 (when he stood surety for the shire knight, Sir John Wroth), and was also present in April 1413 when the Hertfordshire electors met to choose their parliamentary representatives. During this period he began two lawsuits — one concerning the theft of grain from his granges at Great Munden, and the other an act of trespass at some unknown place in Surrey — but in both cases the defendants were pardoned their outlawry for not appearing in court.
Durham died between 22 Sept. and 15 Oct. 1420, leaving a substantial estate, part of which was set aside to finance pious works in memory of his first two wives, Joan and Agnes, and his great friend, John Ludwick. To his kinsman, Thomas Frowyk, a devotee of the chase, he left his best hunter, but the bulk of his possessions was shared between his widow and his only daughter, Margaret, the wife of Sir Philip Thornbury. The couple were subsequently obliged to bring an action in Chancery for the recovery of part of Margaret’s inheritance, since one of Durham’s feoffees refused to relinquish his hold on the property.
