"(fl 1739–50). Irish music editor, composer and instrumentalist. The earliest known references to him occur in Dublin newspapers in 1739 and 1740, when he appeared as a soloist playing concertos on the trumpet and the flute. He also performed in England as a flautist" ...
"About 1745–50 he issued two books which provide one of the earliest printed sources of Irish traditional airs. The first consisted of 12 Scots and 12 Irish airs, the second of 12 English and 12 Irish airs. Both books, which contain Variations, set for the German Flute, Violin or Harpsichord, were published for John Simpson of London," ... "Thumoth's only other known publication is Six Solos for a German Flute, Violin or Harpsichord, the First Three composed by Mr Burk Thumoth, the Three Last by Sigr. Canaby"
Source: Brian Boydell: Thumoth [Thumont], Burk [Burke of Thomond ] quoted from Grove Music Online accessed 23 January 2020, Complete article (requires subscription)