Dictionary of National Biography, 1885-1900/Hayes, John Macnamara
HAYES, Sir JOHN MACNAMARA, M.D. (1750?–1809), physician, born in Limerick about 1750, was the son of John Hayes and Margaret, daughter and coheiress of Sheedy Macnamara of Ballyally, co. Clare (Foster, Baronetage, ed. 1882, p. 302). He served with distinction as an army surgeon in North America and the West Indies, and was promoted to be one of the physicians to the forces. On 20 March 1784 he took the degree of M.D. at Rheims, and was admitted a licentiate of the Royal College of Physicians on 26 June 1786. He was appointed physician extraordinary to the Prince of Wales in 1791, and was elected physician to the Westminster Hospital in 1792, an office which he resigned in 1794. He was created a baronet on 6 Feb. 1797, and became inspector-general of the military department at Woolwich. Hayes died on 19 July 1809, aged 59, and was buried at St. James's, Piccadilly. He married, on 1 May 1787, Anne, eldest daughter of Henry White White, one of the council of New York. She died on 18 Jan. 1848, having had two sons and two daughters. Hayes's portrait by Medley was engraved by N. Branwhite.
[Munk's Coll. of Phys. 1878, ii. 364.]