This completes a three-volume documentary history of the work of John Franklin Jameson. Composed principally of Jameson’s extensive public and private correspondence, Volume 3 highlights his most important contributions as managing editor of the American Historical Review, director of the Department of Historical Research at the Carnegie Institution in Washington, fund-raiser for the Dictionary of American Biography, and, most important, chief architect and promoter of both the American Council of Learned Societies and the National Archives. This volume brings once more to life a man whose deeds and thoughts continue to influence the world we live in.