Duck’s ancestry was probably quite humble, as his pedigree can be traced back through only two generations. However, his father was a minor landowner who claimed gentry status and founded an almshouse near his home in the Exeter suburb of Heavitree.
By now Duck’s London career was thriving, and he became a bencher of Lincoln’s Inn in 1615. For his Lent reading three years later he expounded on the 1540 Act concerning the recovery of rent by executors. He also prepared a set of law reports, though these were never published.
In 1614 Duck helped to deliver Exeter’s Benevolence money to London. As recorder, he became a key agent for the corporation in the capital. Instructed in 1620 to challenge the right of the alehouse licensing patentees to operate in Exeter, he persisted with this task during the 1621 Parliament, when he also liaised with the city’s Members over other local concerns.
With his great experience of the law, Duck contributed confidently to the Commons’ final Jacobean session, securing nomination to 13 bill committees. The majority of these measures concerned legal affairs or private property. On 22 May he was named to consider amendments to the bills on concealed lands and the removal of actions from inferior courts. He also chaired the legislative committees concerned with Wadham College, Oxford and the estates of Toby Palavicino, reporting on 12 Mar. and 20 May. Both measures subsequently reached the statute books. In general, he left economic issues to his more experienced Exeter colleague, John Prowse, but he attended two meetings of the legislative committee on freer fishing in America.
Already a feoffee of Lincoln’s Inn’s buildings, Duck was promoted in the autumn of 1624 to the prestigious keepership of the Black Book, the Inn’s official record. However, he remained active on Exeter’s behalf, in April 1625 formally offering the city’s high stewardship to the 3rd earl of Pembroke.
Duck was not re-elected in 1626, Exeter reverting to its customary choice of two local merchants. However, his legal career was now at its height, and in November 1627 he became treasurer of Lincoln’s Inn. In the following summer, while still in office, he was taken ill at Exeter. Surprisingly, he opted to replace his existing will with a nuncupative one, in which he instructed his brother Arthur and his friend William Noye* to make suitable provision for his wife and son. Among his few specific bequests, he left £20 to his father’s almshouse, and another £15 to the local poor. Duck died in August 1628, and was buried at All Hallows, Exeter. None of his descendants are known to have sat in Parliament.
