I saw ads for this place from December 1932 to 1937, and just loved them!  Who would start a bar before Prohibition was over?  An optimist, I guess.  And name it the Big House?  (Did the waiters wear stripes?)  The answer is a guy named Frank Potvin, whose name was associated with a big moonshine seizure in 1920 but got a liquor license anyway.

The address was 1329 So. 3rd Street, which, as far as I can make out, is where 35W meets Washington Ave.  Maybe he had a big house.

Minneapolis Star, May 19, 1933

Minneapolis Star, September 1, 1933