Cummings v. Missouri

PETITIONER: Cummings
RESPONDENT: Missouri
LOCATION:

DOCKET NO.: None
DECIDED BY: Chase Court (1865-1867)
LOWER COURT:

ARGUED: Mar 15, 1866 / Mar 16, 1866 / Mar 19, 1866 / Mar 20, 1866
DECIDED: Jan 14, 1867

Facts of the case

Following the Civil War, Congress and Missouri adopted provisions that required persons in specified professional occupations to take an oath that they have never given aid to the rebellion and secession. Missouri convicted a priest who refused to take the oath. A former Confederate congressman asked the Supreme Court for permission to practice without taking the federal oath.

Question

Do the state and national oaths violate prohibitions against ex post facto laws and bills of attainder of the Constitution?