Sir Thomas Hales, 3rd Baronet (c. 1694–1762), British Member of Parliament and courtier
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His father, William Harcourt Isham Mackworth (1806—1872), a younger son of Sir Digby Mackworth, the 3rd Baronet, took the additional surname Dolben after he married Frances, the heiress of Sir John English Dolben, the 4th Baronet.
His younger brother Stephen Hales was a curate who was a famous scientist, inventor and philanthropist.