The new Minnesota Centennial Showboat moored at Harriet Island Regional Park, St. Paul, 2014. Viewed across the Mississippi River from Upper Landing Park. Photograph by Wikimedia Commons user McGhiever; shared under the Creative Commons Attribution-share Alike 4.0 International license.

Minnesota Centennial Showboat, ca. 1968. Photograph by the University of Minnesota Photographic Laboratory.

The Minnesota Centennial Showboat being towed to a performance site on the Mississippi River, 1965. Photograph by the University of Minnesota Photographic Laboratory.

Minnesota Centennial Showboat and performers, 1965. Photograph by the University of Minnesota Photographic Laboratory.

Minnesota Centennial Showboat, ca. 1960. Photograph by the University of Minnesota Photographic Laboratory.

Minnesota Centennial Showboat at Stillwater levee, 1958. Photograph by John Runk.

The General John Newton (a sternwheeler towboat) while in service with the US Army Corps of Engineers, ca. 1950s.

Major General John Newton, officer of the Federal Army and namesake of the em>General John Newton sternwheeler towboat.

Theater-goers boarding the Minnesota Centennial Showboat on the East Bank River Flats below the University of Minnesota Campus, 1970. Photograph by the University of Minnesota Photographic Laboratory.