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Thomas Coulthard (c1866- ), of T. Coulthard and Co
c1866 Born at Ashton Preston the son of Thomas Coulthard and his wife Joanna Millar
1911 A Boarder at 31 Broadgate, Preston: Thomas Coulthard (age 45 born Ashton Preston), Machine Maker, Spinning Machinery - Employer. With Thomas Archer Coulthard (age 16 born Ashton Preston). In the house of Emily Ball and her aunt.