Diane Drufenbrock

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Sister Diane Joyce Drufenbrock, S.S.S.F., (born 7 October 1929 or 1930 - 4 November 2013), also known as Sister Madeleine Sophie, was an American Religious Sister who was a member of the School Sisters of St. Francis. She was a Christian socialist who was the Vice-Presidential candidate for the Socialist Party USA in the United States presidential election, 1980.[1]

Drufenbrock was born in Evansville, Indiana. In 1948, after graduating Reitz Memorial High School, she moved to Milwaukee to enter the Franciscan Sisters. A mathematics graduate of Alverno College in 1953[2] and of Marquette University,[3] she taught mathematics at Alverno College, at the University of Wisconsin–Parkside, and elsewhere around Milwaukee, Wisconsin, including at the then-new St. Joseph High School (Kenosha) when it opened in September 1957.

Drufenbrock gained a doctorate in mathematics from the University of Illinois at Urbana in 1963. After teaching for 13 years at Alverno College, she taught at Saint Mary-of-the-Woods College in her native Indiana for 18 years.[4]

Her interest in social issues led her to join the Socialist Party USA in 1976. She ran as their Vice-Presidential candidate in the 1980 United States presidential election,[5] and has served as that party's National Treasurer. That campaign resulted in the Party's recognition by the Federal Elections Commission as a national political party.


  1. ^ Our Campaigns
  2. ^ President's Report and Donor Honor Roll, Alverno College.
  3. ^ Marquette University MSCS Department Mathematics, Statistics, and Computer Science alumni [1]
  4. ^ "Diane Drufenbrock". Google Profiles. 
  5. ^ Milwaukee Co. Historical Society
Party political offices
Preceded by
J. Quinn Brisben
Socialist Party Vice Presidential candidate
1980 (lost)
Succeeded by
Ron Ehrenreich