Stevens was #56 yes, and Dayton is #33 no.
Mark Dayton is another Senator who was a millionaire before he got to the Senate. He financed his 2000 campaign out of his own funds. He is an heir to Dayton Hudson Department stores, which has since changed its name to Target.
http://en.wikipedia.org/wiki/Mark_Dayton
The article says he is Jay Rockefeller's brother-in-law.