Bradmore was a successful surgeon living in London as early as 1377. He seems to have been a prosperous and respected member of his community, acquiring multiple properties and helping to found a parish fraternity. He married twice and had two children. John Bradmore's brother, Nicholas Bradmore, also practiced surgery in London. His daughter Agnes married another surgeon, John Longe. This suggests the Bradmores may have come from a family of surgeons. In 1386 a charge of counterfeiting or “false coining” was brought against both John and his brother Nicholas, but they were pardoned by King
Richard II in the same year. Bradmore was probably a skilled metalworker, as he is also referred to as a "gemestre" (gemster), which may mean he made jewellery. Historian Faye Getz states, "Surgeons especially seem to have engaged in metalworking as a trade, probably making surgical instruments for themselves and for sale purposes." Sometime before 1399 Bradmore became associated with the court of Henry IV. In that year, he successfully treated the master of the king’s pavilions, William Wyncelowe, who had sustained an extensive abdominal wound while attempting suicide. In 1403 and 1406 he received payments from the crown for “fees and robes” and also received an annuity of 10 marks from the prince of Wales, perhaps due to his successful treatment of the prince at Kenilworth. In 1408 he was appointed to the post of searcher of the port of London. ==Arrowhead extraction==