More can be added to the earlier biography.
Beyond representing Grimsby in Parliament on 13 occasions, Duffield played little part in the town’s administrative affairs. In a career spanning over 40 years he seems to have served only once on the mayor’s council and never to have held one of the main town offices, although he polled 12 votes in the election of 21 Sept. 1434 for the office of bailiff.
Duffield’s parliamentary service continued nearly to the end of his life. On 31 Jan. 1447 he was elected with his brother William, only for his election to be set aside in favour of a more important lawyer, Robert Staunton*, but on 16 Jan. 1449 he was successfully returned to the next Parliament. His election on this occasion was singular in that it was made by a jury of 12 rather than by the majority vote of a larger body of the town’s burgesses. The attraction to the town of himself and his fellow MP, William Grimsby*, as candidates was that they agreed to serve at a flat payment of 40s. each rather than a daily rate, such as the 12d. a day that our MP had been paid for his 123-day service in the Parliament of 1423.
