Artist in pastel and watercolour, and teacher, born in Harwich, Essex. He studied at Colchester School of Art, 1955–60, then Royal College of Art, 1960–3, teachers including John Nash, Ruskin Spear and Roger de Grey. He taught at St Martin’s and Norwich Schools of Art and was senior lecturer in drawing at the school of art at Colchester Institute. Hay was noted for his pastels of the Thames, its changing moods in different climates. He was a member of Colchester Art Society, also showing with Phoenix Gallery in London and Lavenham; Minories, Colchester; RA Summer Exhibitions and elsewhere. Public galleries in Sheffield and Doncaster hold examples. Lived in Colchester, Essex.