In July 1769, Mrs. Unwin's son, William Cawthorne Unwin (1745?-1786), who had been educated at Charterhouse school and at Christ's College, Cambridge (B.A. 1764, M.A. 1767), quit Olney upon being instituted to the rectory of Stock, near Ramsden in Essex.
Mrs. Unwin moved with Cowper, at Lady Hesketh's instance, from Olney to Weston in 1786.