found: Porter, S. Down on the Mississippi [SR] 1911:label (American Quartet)
found: Gumble, A. I want to be the leader of the band [SR] 1921:label (Premier Quartet)
found: Pseudonyms on Amer. records (1892-1942), c2001p. 203 (Premier Quartet = American Quartet)
found: Protobilly, ℗2019:insert (the American Quartet; recorded Darling Nellie Gray in 1902; "A number of 'American Quartets' made early records. The best known was formed for Victor in 1909 [sic], with Billy Murray, Steve Porter, John Bieling, and William F. Hooley ... Its records appeared until the end of the acoustic recording era in 1925.")
found: Wikipedia, November 6, 2019(American Quartet; four-member vocal group that recorded for various companies in the United States between 1899 and 1925. The membership varied over the years, but the most famous line-up--comprising John Bieling (first tenor), Billy Murray (second tenor), Steve Porter (baritone), and William F. Hooley (bass)--recorded for the Victor Talking Machine Company from 1909 to 1913. The same group of singers also recorded for Edison Records as the Premier Quartet (or Quartette), and for that and other labels as the Premier American Quartet. From 1912 to 1914 the quartet also recorded with countertenor Will Oakland as the Heidelberg Quintet.)
