Correspondence, diaries, speeches and writings, financial and legal papers, family papers, appointment books, press releases, clippings, printed material, and other papers relating principally to McGranery's duties as assistant to U.S. attorneys general Francis Biddle and Tom C. Clark, as U.S. judge for the Eastern District of Pennsylvania, as U.S. attorney general, as a member of the U.S. Commission on Government Security, and as a law partner with his wife, Regina Clark McGranery, in Philadelphia, Pa., and Washington, D.C. Reflects McGranery's role as a New Deal Democrat in Philadelphia, Pa., and as a leading Catholic layman. Topics include questions of anti-racketeering, civil rights, espionage, immigration and naturalization, internal security, loyalty, political activities of organized labor, subversive activities, and reform of the U.S. Dept. of Justice.

Papers of Regina Clark McGranery reflect the political role of women during the New Deal and pertain to her career as a lawyer and to her leadership in the Associated Alumnae of the Sacred Heart, Girl Scouts of the United States of America, and Woman's National Democratic Club.

Correspondents include Francis Biddle, Katherine Garrison Chapin, Tom C. Clark, Denis J. Dougherty, India Edwards, James Aloysius Farley, J. Edgar Hoover, John W. McCormack, Patrick O'Boyle, Eleanor M. O'Bryne, Samuel F. Pryor, Jr., and family, Joseph V. and Permelia Reed, Fulton J. Sheen, Francis Spellman, and James J. Vallely.