Open from 1899-1913, Sans Souci was a 10 acre park with rides, casino, a skating rink, and a ballroom. It was redeveloped as Midway Gardens (designed by Frank Loyd Wright) and eventually demolished following Word War 2.
The Zancigs performed at the park shortly after it opened.
Mahatma (August 1899)
c1908
Photo source: Encyclopedia of Chicago