U. S. secretary of labor and senator from Pennsylvania. Correspondence, diaries, speeches and writings, investgation files, financial papers, scrapbooks, photographs, and printed matter relating to Davis's service as secretary of labor in three Republican presidential administrations, his tenure as senator from Pennsylvania, and as organizer and leader of the Loyal Order of Moose.

United States attorney general, regent of the University of Texas, and lawyer. Chiefly legal material and correspondence from the period of Gregory's law practice in Washington, D.C. Correspondence also reflects Gregory's interest in the University of Texas, the Woodrow Wilson administration, and the presidential campaign of 1932.

Poltical organization. Correspondence, writings, speeches, press releases, newspaper clippings, and printed material relating mainly to the 1924 presidential campagin of Robert M. La Follette and Burton K. Wheeler.

Lawyer and public official. Correspondence, speeches, writings, family papers, photographs, and printed matter relating primarily to Willebrandt’s service as assistant attorney general under Presidents Warren G. Harding and Calvin Coolidge.