There are 4 titles associated with this firm.

Wynne, John H. Fables of Flowers, for the Female Sex. With Zephyrus and Flora, a Vision. By the author of Choice Emblems for Youth. London: George Riley [St. Paul's Churchyard], Elizabeth Newbery, 1781.
Craven, Elizabeth. The miniature picture; a comedy, in three acts: performed at the Theatre-Royal, Drury-Lane. London: George Riley [St. Paul's Churchyard], 1781.