Either this William Debenham or his older namesake acquired a tenement in St. Mary’s parish, Ipswich, in March 1404, to which in the course of the next five years he added land in the same district and in St. Nicholas’s parish. In 1411 Debenham (probably the younger man) purchased four shops with solars in St. Laurence’s, and later transactions dating between 1414 and 1422 involved property of his in the parishes of St. Margaret and St. Peter.
Debenham attended the Ipswich elections to the Parliaments of 1410, 1413 (May), 1421 (Dec.), 1423, 1427 and 1429, on occasion acting as mainpernor for those elected. When bailiff he was responsible for making the parliamentary returns, doing so for the assemblies of 1414 (Nov.), 1417 and 1419 — he himself being one of those elected on all three occasions — and again in 1442. Furthermore, in the company initially of his kinsman Gilbert Debenham of Little Wenham and then of the latter’s son, he attended the shire elections for Suffolk in 1411, 1413 (May), 1414 (Nov.), 1417, 1427 and 1431. In 1417, himself returned for Ipswich, he was named as mainpernor for Sir John Braham, one of the knights of the shire.
In April 1420 Debenham and his fellow bailiff, Robert Lucas, were accused in Chancery by John Shipley, bailiff of the estates of the duchy of Lancaster in Suffolk, of the wrongful arrest of a duchy tenant at Earl Stonham, and three months later Debenham had to provide securities that he would not procure any hurt or harm to Shipley. That August he was named with several prominent members of the gentry of East Anglia as a feoffee of property left in the will of Margaret Weyland, with whom he may have become acquainted through his friend James Andrew of Sproughton, Margaret’s son-in-law.
Debenham is last recorded alive on the occasion of his eighth election as bailiff of Ipswich in 1444. Precisely when he died is not known, but he was buried in the church of the Carmelite friars of Ipswich; and in 1464 John Drayles, who had obtained most of his property by purchase, not only requested burial next to his tomb, but also asked that masses be said for 30 years for his soul.
