National Archives and Records Administration.

Office of the Clerk, U.S. House of Representatives, Member Profiles. Click on Member to view recent votes.

Federal Election Commission.

Data on voting, public opinion, and political participation from surveys conducted by the American National Election Studies. Includes U.S. elections back to 1948.

A searchable collection of election returns from the earliest years of American democracy. The data were compiled by Philip Lampi. The American Antiquarian Society and Tufts University Digital Collections and Archives have mounted it online for you with funding from the National Endowment for the Humanities.

U.S. House of Representatives, History, Art, and Archives site.

Center for American Women and Politics, Rutgers Eagleton Institute of Politics

U.S. Census Bureau site.

Library of Congress digital collections of primary source materials associated with presidential elections from 1789 to 1920