Several other major new figures became associated with the society during this period. Samuel Galton, Jr., unusual as a Quaker who was also a gun-manufacturer, appears in the letters of other Lunar members as attending meetings from July 1781, and his daughter Mary Anne Schimmelpenninck was to provide one of the few first-hand accounts of the Lunar Society's activities. The botanist and physician Jonathan Stokes, who had known William Withering as a child, moved to Stourbridge and started attending Lunar Society meetings from 1783. His contribution to the society was significant but short-lived: after collaborating with Withering on his "Botanical Arrangement of British Plants" the two quarrelled bitterly and Stokes severed his relations with the main Lunar members by 1788.