Robuta

https://en.wikipedia.org/wiki/List_of_United_States_senators_from_Missouri

https://en.wikipedia.org/wiki/List_of_United_States_senators_from_Nebraska

https://en.wikipedia.org/wiki/List_of_United_States_senators_from_Wyoming

https://www.senate.gov/art-artifacts/historical-images/prints-engravings/38_00341.htm