During his Met career, in 1956, he appeared on Ed Sullivan's television program in an abridged version of Act II of Tosca, opposite Maria Callas, conducted by Dimitri Mitropoulos. A kinescope of that performance was preserved.
A paralyzed vocal cord ended his singing career prematurely in 1967. In 1971, London established the George London Foundation for Singers, which gives grants to young opera singers early in their careers. $80,000 is given each year to the winners of an annual competition.
From 1975 until 1980 he was general director of the Washington Opera (later the Washington National Opera).
He died in Armonk, New York.
from the George London Foundation