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In 1938 he sang in the Federal Music Project NBC Blue radio opera Gettysburg, first from the El Capitain Theatre in Los Angeles, then at the Hollywood Bowl.
Throughout the 1940s, WSGN was an affiliate of the NBC Blue Network, the forerunner of the current ABC Network.
In the 1930s and 1940s, the WNRI call letters were assigned to an NBC owned-and-operated shortwave station (originally W3XL) that transmitted from Bound Brook, New Jersey, a site it shared with NBC Blue-era WJZ.