[1] During his time in the Eighty-third Congress, he was the chairman of the U.S. House Committee on Interior and Insular Affairs.

In 1944 Rep. Miller released private political correspondence he had exchanged with General Douglas MacArthur.

Additionally those arrested had to undergo psychiatric assessment and if they were regarded as not having control of their (homosexual) sexual impulses then they could be detained indefinitely in the criminal ward of the Washington psychiatric hospital until “recovered” and without recourse first to the courts.

[2] Miller worked to purge gay people from US government employment during the lavender scare, saying homosexuals were "not to be trusted" because they were susceptible to blackmail by communists.

He then became the director of the Office of Saline Water in the Department of the Interior from February 1959 to January 1961.