The Roll Call of Yeas and Nays when the House or Senate votes on a bill is recorded in the Congressional Record. For legislation voted on in the past fifty years, various online tools make finding the roll call a simple process. In the case of roll call votes prior to 1969, in many cases searching for the vote in the published Congressional Record (as in this example) is the only option. (This can still be done online with a few extra steps - see below).
Locating recording of votes on bills prior to 1945:
1789-1924: See subject entry for Yeas and Nays in Register of Debates in Congress and Annals of Congress (1789-1824) (in Hein Online (See Debates tab above for tips on searching Congressional Publications in Hein Online
This work is licensed under a Creative Commons Attribution NonCommercial 4.0 International License. | Details and Exceptions