The digital collection linked to below was recently made available online via the Library of Congress.
From the Library of Congress:
The diaries of U.S. army officer George S. Patton (1885-1945) are part of a larger collection of Patton papers available for research use onsite in the Manuscript Reading Room of the Library of Congress. The entire collection spans the years 1807-1979, with the bulk of the papers concentrated from 1904 to 1945.
The diaries, 1910-1945, digitized for this online presentation, illustrate Patton’s activities during the Mexican Punitive Expedition, World War I, and World War II. The volumes, particularly from 1942 to 1945, document Patton’s daily activities and observations and reveal his candor about himself, personally and professionally. They include information about American ground combat operations in the campaign for North Africa, the invasion of Sicily, the liberation of France, and the final assault on Germany. Annotated volumes covering World War II often contain additional detail expanding on the original volume entries. The original diaries are dated through 24 March 1945, while annotated transcripts continue to 3 December 1945. The Library did not receive the latter portion of the original diaries. Additional topics include Patton’s honeymoon trip to Europe in 1910 and his fox hunting activities, 1932-1935.