Hector Turnbull (1733 – 1788) was a leading Perthshire linen bleachfield developer and operator. Hector was born in 1733 on his father William Turnbull's farm Blackadder Mains near the Blackadder Water river in southern Berwickshire, Scotland. He worked at the British Linen Company's bleachfield in Saltoun, East Lothian before moving in 1753 to Luncarty near Perth to be the business partner of William Sandeman who was leveling 12 acres (49,000 m2) there to be bleachfields. By 1790, the Luncarty bleachfields covered 80 acres (320,000 m2) and processed 500,000 square yards of cloth annually.