Donald J.A. "Don" Lewin OBE (born 1933) is the chairman and founder of Clinton Cards, a chain of greeting cards shops in the United Kingdom. He and his family were estimated to be worth £139 million in 2008.Lewin was born in Bow in the East End of London, the son of Rose Kezia (Hood) and John T. Lewin. He grew up during the Blitz, the German aerial attacks on London in World War II.