"Besides his boat, he had a gig and an old horse; an old crop-eared bay horse, or rather a cross between a horse and a pony. In this gig he used to drive out sketching, and take my father [James Trimmer] and myself with him. His sketching apparatus was under the seat. I remember once going on an expedition of this kind to Staines, and thence to Runnymede, where he made some sketches. From there he painted a picture which strongly resembles the place to this day. We went, I remember, at a very steady pace, for Turner painted much faster than he drove. He said, 'if when out sketching you felt at a loss, you had only to turn round or walk a few paces farther, and you had what you wanted before you.' He has immortalized his old crop-ear in his [painting] 'Frosty Morning'."