• Born year: 1709
  • Born in: n.a.
  • Death year: 1776
John Bird (astronomer)

John Bird (1709–1776), the great mathematical instrument maker, was born at Bishop Auckland. He worked in London for Jonathan Sisson, and by 1745 he had his own business in the Strand. Bird was commissioned to make a brass quadrant 8 feet across for the Royal Observatory at Greenwich, where it is still preserved. Soon after, duplicates were ordered for France, Spain and Russia.