Unknown lady from South Minneapolis, 1950s, 1960s

Do you recognize this lady? We think she is a friend/coworker of Tina Gunderson. Why? We have similar photos of Tina taken at one of the many restaurants she worked at/managed. Some possible places this was taken:
Pizza Papa's, Hiawatha Room, Mr. Tina's Pizza, Alpine Inn, or ADM










We think the photos were taken in the 1950s-1960s.

All these places were located in South Minneapolis, Minnesota.

Iris and Chuck, Shower, Minnesota, Junior's Folks, Minneapolis ? 1950s ?

The photos were labeled Iris & Chuck's Shower. They must have been friends of our grandparents as our grandparents were the attendants. Our grandparents lived in Minneapolis, MN at this age, so they are all likely from Minneapolis. Circa 1950s ?

 

 

 Iris is the young woman in front, Chuck is the taller man on the right in the light suit. Junior's folks are behind them on the right.

 This one was labeled Iris & Chuck Shower, Junior's Folks

The final one is of Iris & Chuck on the right and our grandparents, Ellsworth & Shirley "Tina" Gunderson on the left.