The cornerstone of Nova Scotia Government House was laid by Governor John Wentworth. It is the oldest official government residence in Canada. In 1819, while he served as an aide to the Lieutenant Governor Lord Dalhousie, J.E. Woolford created a sketch of the residence. (Painting: Nova Scotia Government House, 1819. Etching by J.E. Woolford. Dalhousie Killam Library Special Collections.)