This opinion cites 8 cases:

Griffiths v. Commissioner ( 1939 )


Helvering v. Horst ( 1940 )


Bullen v. Wisconsin ( 1916 )


Helvering v. Clifford ( 1940 )


Blair v. Commissioner ( 1937 )


Gregory v. Helvering ( 1935 )


Lucas v. Earl ( 1930 )


Burnet v. Leininger ( 1932 )