Ward v. Atlantic Coast Line Railroad , 80 S. Ct. 789 ( 1960 )
Spies v. United States , 63 S. Ct. 364 ( 1943 )
Prince v. United States , 77 S. Ct. 403 ( 1957 )
Heflin v. United States , 79 S. Ct. 451 ( 1959 )