First Ku Klux Klan Act
(Civil Rights Act of 1870) 16 Stat. 140–146 Prohibited discrimination in voter registration on the basis of race, color, or previous condition of servitude. Established penalties for interfering with a person’s right to vote. Gave federal courts the power to enforce the act and to employ the use of federal marshals and the army to uphold it. Passed by the 41st Congress (1869–1871) as H.R. 1293
Second Ku Klux Klan Act
(Civil Rights Act of 1871) 16 Stat. 433–440 Placed all elections in both the North and South under federal control. Allowed for the appointment of election supervisors by federal circuit judges. Authorized U.S. Marshals to employ deputies to maintain order at polling places. Passed by the 41st Congress (1869–1871) as H.R. 2634.
Third Ku Klux Klan Act (1871) 17 Stat. 13–15 Enforced the 14th Amendment by guaranteeing all citizens of the United States the rights afforded by the Constitution and provided legal protection under the law. Passed by the 42nd Congress (1871–1873) as H.R. 320.