 Also by 1750 Frye was serving as manager of the factory, under new owners, John Crowther and Weatherby.In 1753 they were advertising in Birmingham for painters and a modeller.Sources for the early history of the Bow manufactory were collected by Lady Charlotte Guest in memoranda, diaries, and notebooks, including the diary, account books and other papers of John Bowcocke (d. 1765), who was employed in the works as a commercial manager and traveller.