Chiefly mimeographed copies of letters, 1923-1939, involving Monsignor John A. Ryan, Franklin Delano Roosevelt, Joseph Kennedy, Josephus Daniels, H.L. Mencken, and others; concerning such topics as Hitler, Father Coughlin, pacifism, anti-semitism, profit sharing, and religious tolerance; with a few autograph letters from Callahan to Frederick Kenkel of the Catholic Central Verein; and a paper by William E. Ellis, "Patrick Henry Callahan: A Kentucky Democrat in National Politics," 1976.