Thomas Greenhalgh (1633-1692), of Brandlesholme in Elton, near Bury, was the member of a family that had served the Earls of Derby. His grandfather John Greenhalgh was Governor of the Isle of Man for the Royalist earl during the Civil War, which cost him his estates in Lancashire seized by the Parliamentary authorities. Thomas succeeded him on his death in 1651, his own father, Richard, being dead. Thomas Greenhalgh was sheriff of the county in 1667-8. 
He continued the family’s connection with the Stanleys, serving as one of the Earl of Derby‘s deputy lieutenants from 1673 to 1687. He was put out in 1687 when the Catholic Viscount Molyneux was appointed lord lieutenant, but reinstated just before the 1688 revolution. 
Greenhalgh was a Preston out-burgess at the 1662 guild, and again in 1682, along with his sons. 
He was related to the Preston diarist Lawrence Rawstorne: his mother, Alice, was the daughter of Lawrence’s father Edward Rawstorne of New Hall, and his aunt, Mary Greenhalgh, was married to Lawrence’s brother, Edward.