The Trevelyan Conservation-piece: Sir John Trevelyan, 4th Bt (1735-1828) with his Wife Louisa Simond, Lady Trevelyan, his Son Sir John Trevelyan, 5th Bt (1761-1846) and his Daughter Helena Trevelyan, Arthur Devis, circa 1740
Object Type: painting. Date: circa 1740. Dimensions: height: 78.1 cm (30.7 in) ; width: 99.7 cm (39.2 in). Medium: oil on canvas. Collection: National Trust. Arthur Devis (1712-1787) (style of) - The Trevelyan Conversation Piece, Sir John Trevelyan (1735–1828), 4th Bt, with His Wife Louisa Simon - 584347 - National Trust