User:Rich Farmbrough/DNB/R/o/Robert Hayley

Robert Hayley||1770| Robert Hayley (died 1770?), painter, born in Ireland, studied at Dublin under Robert West. He is chiefly noted for a peculiar method of drawing in black and white chalk, successfully imitating mezzotint. Many of his drawings were in the collections of the Earls of Moira and Mornington. Hayley died in Dublin about 1770.

DNB references
These references are found in the DNB article referred to above.