There are 3 titles associated with this firm.

Young , M.J. (1791). Genius and fancy; or, dramatic sketches. by a lady. London: Henry Delahoy Symonds [Paternoster Row] John Gray.
Young , M.J. (1795). Genius and fancy; or, dramatic sketches. by a lady. London: Henry Delahoy Symonds [Paternoster Row] John Gray.