Helvering v. Illinois Life Insurance ( 1936 )
Helvering v. Oregon Mutual Life Insurance ( 1940 )
McCoach v. Insurance Co. of North America ( 1917 )
Helvering v. Inter-Mountain Life Insurance ( 1935 )
United States v. Boston Insurance ( 1925 )
Duffy v. Mutual Benefit Life Insurance ( 1926 )