Member of Pennsylvania Free Library Commission, 1909-1917, American Library Association (councilor, 1909-1917, and since 1924. Executive Board, 1913-1917. Chairman of the Board of education, 1928-1931. President 1937-1938), Newcomen Society, History of Science Society. Fellow American Association for the Advancement of Science, New York Library Club (president 1921-1922). President Keystone State library association, 1908-1909.
Craver, Harrison Warwick was born on August 10, 1875 in Owaneco, Illinois, United States. Son of Harrison Eugene and Caroline Ernestine (Weirauch) Craver.
Chemist various steel companies, Leechburg and Pittsburgh, Pennsylvania, and Graham, Virginia, 1896-1899. Technology librarian, Carnegie Library of Pittsburgh, 1900-1902. Assistant superintendent Allegheny Iron & Steel Company, Brackenridge, Pennsylvania, 1902.
Technology librarian, 1903-1908, librarian, 1908-1917, Carnegie Library of Pittsburgh. Director, 1917-1945; consulting librarian, Engineering Societies Library, New York City, since 1946.