When Miss Minutes haunts the public at the 1893 Chicago's Fair, it can be seen a line of flags from several countries. The flag of Sweden shown is the current one, which was adopted on the 22nd June 1906, 13 years after the events in the episode.
In Chicago, Timely tells Ravonna that his home is in Wisconsin, so they take a boat to get there. On their way, they pass by the fair on the right side of the boat, but if they are going north to Wisconsin, the fair would be on the left side.
Timley says that his workshop in Wisconsin is 'on the other side of the lake'. Wisconsin and Chicago are both on the west side of Lake Michigan.