One could mention that the Andrews Sisters lyrics, copyrighted in the USA to comedian Morey Amsterdam, were not the original lyrics either. Actually Amsterdam lifted the song, originally written by Trinidad artist Lord Invader (born Rupert Grant) to a melody of calypso composer Lionel Belasco, when he visited Trinidad in September 1943 as part of a U.S.O. tour.
Although Amsterdam stripped the song of most of its social commentary (about U.S. soldiers debauching local women), he preserved the chorus hinting that women were prostituting themselves ("Both mother and daughter / Working for the Yankee dollar"), although the Andrews Sisters apparently didn't get it.
Very simple. "Der Bingle" was Bing Crosby who recorded for the same label the Andrews Sisters' hit version was released on - Decca. The "swooners' idol" was Frank Sinatra who, at the time, just happened to be signed to Columbia. If the switch occurred, it would have happened in this verse that begins thus: "In old Trinidad, I oh so fear
The situation is mighty-------"
I don't know what you mean by "der bingle". Name some names. Who is the swooners idol ? I played this record today, and the only thing I could understand from her was "workin' for the yankee dolla'"