Gould v. Gould , 38 S. Ct. 53 ( 1917 )
Helvering v. Leonard , 60 S. Ct. 780 ( 1940 )
Douglas v. Willcuts , 56 S. Ct. 59 ( 1935 )
Helvering v. Fitch , 60 S. Ct. 427 ( 1940 )
Helvering v. Fuller , 60 S. Ct. 784 ( 1940 )