LexisNexis Congressional
Roll call votes from 1987 (100th Congress) forward.
• Tips for finding votes.

CQ Weekly
Roll call votes from 1991 (102nd Congress) forward.
• Tips for using CQ Weekly to find votes.

U.S. House of Representatives - Office of the Clerk
Roll call votes from 1990 (101st Congress, 2nd session) forward.
• Tips for finding floor votes at the House Web site.

U.S. Senate - Votes
Roll call votes from 1989 (101st Congress) forward.
• Tips for finding floor votes at the Senate Web site.

A Century of Lawmaking for a New Nation (Library of Congress)
Votes are included in the text of proceedings recorded in:
Annals of Congress 1789-1824
Register of Debates 1824-1837
Congressional Globe 1833-1873
• Tips for using A Century of Lawmaking to find floor votes.