Walter Devereux (1411–1459)
Following the death of Edmund Mortimer, 5th Earl of March, on 18 January 1425, Richard, 3rd Duke of York inherited his estates along the Welsh Marches. This brought Walter Devereux into the retinue of the Duke, and he remained his loyal supporter throughout the War of the Roses. Devereux had been knighted by 22 September 1429 when he first represented Herefordshire in Parliament. He probably was in attendance on the Duke when he travelled with Henry VI to France for his coronation on 16 December 1429. On his return Devereux represented Herefordshire again in Parliament on 16 January 1430. He was listed on the subsidy rolls for Herefordshire of 12 January 1431 as holding his 1/3 of half a fee in Byford.
Walter Devereux (died 1641)
When Essex set out with the English Expeditionary Force to the Low Countries in August 1624, Walter accompanied him as a captain of the foot in Essex's regiment. He remained with Essex through the Winter at the Siege of Breda and shared the hardships and hand-to-hand combat occurring at the close of this action. In May 1625 he opted to remain in the Low Countries due to disease in London, and requested payment for this extended service from the Dutch government in May 1626. Walter Devereux returned to England in July 1625 for Parliamentary elections, and may have returned to the Low Countries with Essex who finally returned to England in November 1626 for good after failing to be given an appropriate command with the troops being sent to join the King of Denmark under General Morgan.