Izaak Kolthoff in retirement, ca. 1970s.

Izaak Kolthoff (left) with University of Minnesota President C. Peter Magrath at the dedication of Kolthoff Hall, 1972. Used with the permission of the University of Minnesota Department of Chemistry.

Kolthoff Hall, 1971.

Izaak Kolthoff lecturing in Russia, 1958. Used with the permission of the University of Minnesota Department of Chemistry.

Frank M. Whiting, director of the University of Minnesota's theater program, 1973.

Osman Ali, founder Somali Museum of Minnesota (right), accepting the Innovation Award at the 2017 International Somali Awards in London on March 15, 2017.

Detail of a flyer promoting Chicago Week at the University of Minnesota, 1979. From the Chicano Studies Department (1968–present) information files collection (box 62, mixed media), University of Minnesota Archives,

Detail of a flyer distributed to promote the 1970 Chicano Midwest Conference, held at the University of Minnesota on December 2, 3, and 4. From the Chicano Studies Department (1968–present) information files collection (box 62, mixed media), University of Minnesota Archives, Minneapolis.

Detail of the cover of a brochure listing classes offered by the University of Minnesota’s Department of Chicano Studies, 1975. From the Chicano Studies Department (1968–present) information files collection (box 62, mixed media), University of Minnesota Archives, Minneapolis.