R&H - The original EGOT!

Rodgers and Hammerstein were the original EGOT (Emmy, Grammy, Oscar, Tony) team with 2 Emmy Awards, 2 Grammy Awards, 15 Academy Awards and 34 Tony Awards.

They also won 2 Pulitzer Prizes just for good measure (EGOPT?). 

And don't forget that Rodgers and Hammerstein began writing together before the era of the Tonys—Oklahoma! opened in 1943 and Carousel in 1945, and the Tonys were not awarded until 1947.

Oklahoma, the first Rodgers & Hammerstein musical, was also the first of a new genre, the musical play, representing a unique fusion of Rodgers' musical comedy and Hammerstein's operetta. A milestone in the development of the American musical, it also marked the beginning of the most successful partnership in Broadway musical history and was followed by many others.

Oscar Hammerstein II was born in 1895 and died in 1960.

Richard Rodgers was born in 1902 and died in 1979.