Anderson v. United States , 48 F.2d 201 ( 1931 )
Crowe v. Commissioner of Internal Revenue , 86 F.2d 796 ( 1936 )
Edwards v. Slocum , 44 S. Ct. 293 ( 1924 )
Taft v. Helvering , 61 S. Ct. 244 ( 1940 )
Cole v. Commissioner of Internal Revenue , 81 F.2d 485 ( 1935 )
Helvering v. Janney , 61 S. Ct. 241 ( 1940 )