Author/Creator
- Library of Congress. Congressional Research Service, issuing body160
- Ancient and Honorable Artillery Company of Massachusetts154
- The Washington Post151
- The New York Times144
- United States. Congress. House. Committee on House Administration. Subcommittee on Elections119
- United States. Social Security Administration. Office of Research, Evaluation, and Statistics110
- Adam Matthew Digital (Firm), publisher107
- United States. Congress. Senate. Committee on Rules and Administration. (1947- )100
- United States. Bureau of the Census97
- ProQuest (Firm)96
- United States. Department of State94
- United States. Congress. Senate. Committee on the Judiciary93
- Universal Newsreel93
- United States. Congress. House. Office of the Clerk91
- United States. Congress. House. Committee on the Judiciary. (1813- )87
- Oxford University Press85
- United States. Congress. Senate. Committee on the Judiciary. (1816- )85
- United States. Congress. House. Committee on Elections No. 1. (1895-1946)82
- Congressional Quarterly, inc80
- Project Muse. distributor80