Kitchin’s map of 1750. Thomas Kitchin, an engraver and publisher from c.1738 to 1776, held the appointment of Hydrographer to the King. His output was prolific. He engraved the maps of the British and French dominions in North America by John Mitchell (1755), which was used at the peace coucil at the end of the revolutionary war. In his later years he worked with his son (hence senior after his name in the c.1755 edition of the Small English Atlas). He died in 1784.