I guess this is where I regret not buying that Guy Lombardo record even more. 

So, yeah, apparently the famed band leader hit Duluth in October 1948.

I wouldn't know where to start on figuring out if a 1960s or 1970s show happened, but I had 10 minutes to kill at the library, so I spent 30 minutes looking through Duluth News Tribune microfilm for evidence of a 1948 Guy Lombardo show. I couldn't find anything about Lombardo in the paper, but here is who did perform in Duluth on Oct. 14, 1948:



And oh, by the way, the day before Rise Stevens, the "world's most glamorous mezzo-soprano" was in Duluth, the president of the United States, Harry S. Truman, happened to cruise through the downtown.