Thirkettle (or Thurkettle), Nathaniel Palmer (1807-31)
Thirkettle (or Thurkettle), Nathaniel Palmer, Norfolk, cm (1807–31). Polled at Gt Yarmouth, of there, in 1807 and 1812; and of Norwich, 1820–31.
The original entry from Dictionary of English Furniture Makers, 1660-1840 can be found at British History Online.