Button produced by It’s Time Minnesota in 1993. The organization advocated for the amendment of Minnesota’s Human Rights Act to include protections of gay rights.
A young Kolthoff on vacation in the mountains, somewhere in Europe, ca. 1910s. Used with the permission of the University of Minnesota Department of Chemistry.
Izaak Kolthoff (front row, fourth from left) with University of Minnesota Chemistry Department faculty, 1934. Samuel Lind is at Kolthoff’s right. Used with the permission of the University of Minnesota Department of Chemistry.
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.
Iŋyaŋ Tiyopa (Stone Door), a natural limestone arch in Frontenac State Park sacred to Dakota and Meskwaki people. Photograph by Wikimedia Commons user McGhiever, October 3, 2012. CC BY-SA 3.0.