Bevis Bulmer certainly didn’t have a good start in life. He was about one when his parents were executed for high treason on the same day in May 1537, having been caught up in the Pilgrimage of Grace. Sir John, from a prominent Yorkshire family, was hanged and beheaded whilst Margaret, his mother who may have been an illegitimate daughter of the third Duke of Buckingham, was burned, her sentence possibly not commuted because her second marriage was irregular, as Wriothesley’s Chronicle records (1).
Nevertheless, he went on to become a prominent mining engineer by 1562, starting in the North Riding, then working in the Mendip Hills and Tintern. He frequently worked in Devon but also in Wexford, Leadhill in Lanarkshire and Ettrick in the Borders, being granted several patents. After James’ succession in England, Bulmer was knighted and discovered silver near Bathgate. He died in 1615, having had four children.
(1) “Also the 16 day of May  there were arraigned at Westminster afore the King’s Commissioners, the Lord Chancellor that day being the chief, these persons following: Sir Robert Constable, knight; Sir Thomas Percy, knight, and brother to the Earl of Northumberland; Sir John Bulmer, knight, and Ralph Bulmer, his son and heir; Sir Francis Bigod, knight; Margaret Cheney, after Lady Bulmer by untrue matrimony; George Lumley, esquire; Robert Aske, gentleman, that was captain in the insurrection of the Northern men; and one Hamerton, esquire, all which persons were indicted of high treason against the King, and that day condemned by a jury of knights and esquires for the same, whereupon they had sentence to be drawn, hanged and quartered, but Ralph Bulmer, the son of John Bulmer, was reprieved and had no sentence.”