Minneapolis students show support for striking teachers, April 10, 1970. Photograph by Buzz for the St. Paul Dispatch/Pioneer Press. From box 281 of the Twin Cities Newspapers Negatives Collection, Minnesota Historical Society.

Minneapolis teachers on strike, April 9, 1970. Photograph by Charles Bjorgen for the Minneapolis Star. From box 299 of the Twin Cities Newspapers Negatives Collection, Minnesota Historical Society.

Minneapolis teachers on strike, April 9, 1970. Photograph by Church for the St. Paul Dispatch/Pioneer Press. From box 281 of the Twin Cities Newspapers Negatives Collection, Minnesota Historical Society.

Minneapolis teachers on strike, 1940s.

Aerial view of the Swift Company plant in Worthington, 1982. Forms part of the Mart aerial photography collection (I.303).

Babysitter Amy Juarez with Baby Hamilton. Hamilton was separated from his mother, Catalina, after the ICE raids in Worthington on December 12, 2006. Photograph by Diego Velez for the Minnesota Immigrant Freedom Network, December 17, 2006.

The Immigrant Law Center of Minnesota’s John Keller (left) and UFCW Local 1161 President Mike Potter (right) with two family members (center) reunited after the ICE raid on the Swift & Company plant in Worthington. Photograph by the Minnesota Immigrant Freedom Network, December 14, 2006.

Industrial therapist Edmund Sandeen presents a St. Peter State Hospital display that tells the story of the institution’s industrial therapy program, ca. 1950.

Employees of the St. Peter State Hospital (St. Peter, Minnesota) cutting ice on the Minnesota River, next to the hospital, January 1940.