The first George Warren, master carpenter at Kew, married local girl Elizabeth Howlett (1703—1766), daughter of a bricklayer. However, this description is a little misleading.
The Warrens and Howletts both owned land around Kew Green and as the royal family became more interested in Kew and Richmond and expanded their building works, the Howletts prospered. Elizabeth’s father, Thomas Howlett (1678—1759) became bricklayer to the Prince of Wales and, in 1736, together with Joseph Pratt, he was appointed Master Bricklayer of His Majesty’s Works. Thomas Howlett and Joseph Pratt were thus in charge of all brickwork in the royal residences.
Along with his daughter Elizabeth, Thomas Howlett also had a son, Thomas (1704—1737), but these are the only children of his that I know about. Thomas junior was also a bricklayer, continuing the family line of work. When Thomas died, he left a house “in the Occupation of Lady Judith Coote” to his father for life and then to his sister and his brother-in-law George Warren. George Warren died in 1755 and the next year his father-in-law made a will with provisions for the children of his sister and for his grandchildren. The eldest, George, was given £100 and three of his siblings £200 each. However, George and Elizabeth had wisely named one of their children Thomas Howlett Warren (1733—1777); he got the bulk of the estate. While the younger George was a carpenter, and his brother William a carpenter and wheelwright, Thomas Howlett became a gentleman. By the time of his death in 1777 his estate included at least 15 buildings at Kew, including the Rose and Crown pub and, rather charmingly, “a large workshop adjoining the stable, occupied by his Majesty, now in the possession of Mrs. Warren”.