Collier painted numerous portraits of members of the family. He painted both his wives, Marian (Mady) and Ethel; his children; both Thomas Henry Huxley and his wife; and many of the next two generations. A biographer reports a total of "thirty-two" Huxley family portraits during the half-century after his marriage to Mady. His favourite sitter was his eldest daughter Joyce, of whom six portraits are recorded. Second wife Ethel sat for four portraits; their children, Joan and Laurence, the Buzzard children, Laurence's wife Eleanor, and several of their children were also portrayed. Many of Huxley's children and some of his grandchildren were portrayed: Leonard Huxley, Julian and Juliette Huxley, Aldous Huxley; Henry (Harry) Huxley and his wife, and son Gervas; Henrietta (Nettie) Huxley; and there are others.