Spencer was renowned for his elegant and lively horse paintings, as well as miniature portraits. He worked on a series of horse portraits with James Seymour between 1740 and 1746, and might have been a pupil of Seymour’s prior to this. The artists’ styles were similar, but Spencer tended to use a softer palette. His work is represented in the Tate Collection.
With Sothebys, London, 28 February 1962, lot 91, as John Wootton; Arthur Ackermann and Son Ltd, London, by 1962; Rutland Gallery, London; Collection of Lady King of Wartnaby.