L Stanley Jast

Lionel Roy McColvin (1896–1976), commonly referred to as Lionel McColvin, was a British librarian. He has been described as "the dominant figure in British public librarianship" in the mid-20th century and a "world leader" in the profession of librarianship. Through his membership of the Library Association and several international library committees he worked constantly to improve the "status of librarianship" and its "standards of service".