Hammerton, William (d.1732); British. Medium: pen and ink and wash on paper. Date: 1721. After John Barnwell (c.1671-1724); important political document forming the basis of subsequent mapping of the area until the American Revolution; Provenance: Yale Center for British Art, New Haven, USA / Gift of the Acorn Foundation Inc. / Alexander O. Vietor, '36 President, in honour of Paul Mellon. Photographic Rights The Bridgeman Art Library.