Barlow Trecothick

From about 1724, the Trecothicks lived in Boston, Massachusetts Bay, where in 1734 the young Trecothick was apprenticed to Charles Apthorp, an enormously rich English-born merchant and slave trader of Boston,[3] serving him until 1740, and then becoming a merchant.

[4][5] In his evidence to a parliamentary committee in England in 1766, Trecothick said he had lived at Boston between the ages of seven and twenty-two, was then in Jamaica for seven years, returned to New England for three years, and finally settled in London.

[1] After marrying in 1747, Trecothick and his wife moved to London, where they settled around 1750, and he continued trading as a merchant, through a company called Trecothick, Apthorp, and Thomlinson, becoming a member of the Worshipful Company of Clothworkers.

In 1768 he bought the manor of Addington, in Surrey, for £38,500,equivalent to £6,740,000 in 2023, and began to build Addington Park, a new country house designed by Robert Mylne in the Palladian style, with single-storey wings.

[7] He soon had an estate of some five thousand acres,[6] and went on to sit as a Member of Parliament for the City of London between 1768 and 1774, also serving as Lord Mayor in 1770.