1845-57 Charles Stanley1857-71 Paul Morphy1871-90 George H. Mackenzie1890-91 Jackson Showalter1891-94 Solomon Lipschutz1894 Jackson Showalter1894-95 Albert Hodges1895-97 Jackson Showalter1897-1906 Harry Nelson Pillsbury1906-09 Jackson Showalter1909-36 Frank J. Marshall1936 Samuel Reshevsky1938 Samuel Reshevsky1940 Samuel Reshevsky1942 Samuel Reshevsky1944 Arnold Denker1946 Samuel Reshevsky1948 Herman...
