Sir Claude married Lilie Karmini Chitty (born 1903), daughter of James Morel Chitty, Crown Counsellor, also from Chilaw and a son of Christian S. Chitty and his French Huguenot wife, Auguste Matilde "Mitzi" Morel.
The Clementine Paddleford papers in the Kansas State University Archives and Manuscripts have an intriguing entry: "Corea, Lady Karmini, wife to Sir Claude Corea, Ceylon's, United Nations Ambassador - 'A Fashion Note at U.N.,' n.d." under "People, 1932-1967" [REF].