Charles Ammi Cutter 1887–1889 Developed the Cutter Expansive Classification system which became the basis for the top categories of the Library of Congress Classification. Frederick Morgan Crunden 1889–1890 First president of the Missouri State Library Association. Melvil Dewey 1890–July 1891 Also served as president 1892-1893; Served as treasurer, 1876-1877 and 1880-1881; Served as secretary 1879-1890 and 1897-1898.