Diane Drufenbrock

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Diane Joyce Drufenbrock SSSF (October 7, 1929 – November 4, 2013),[1] also known as Sister Madeleine Sophie, was an American religious sister as a member of the Catholic School Sisters of St. Francis. She was a Christian socialist who was the Vice-Presidential candidate for the Socialist Party USA in the 1980 United States presidential election.[2]

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[3] and of Marquette University,[4] 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.[5]

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,[6] and 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. ^ "Sr. Diane Drufenbrock". Heritage Funeral. Heritage Funeral. Retrieved 12 November 2014.
  2. ^ "Our Campaigns - Candidate - Diane Drufenbrock". Ourcampaigns.com. Retrieved 15 July 2018.
  3. ^ President's Report and Donor Honor Roll, Alverno College.
  4. ^ "Mathematics, Statistics and Computer Science - Marquette University". Mscs.mu.edu. Retrieved 15 July 2018.
  5. ^ "Diane Drufenbrock". Google Profiles. Archived from the original on 7 June 2015.
  6. ^ "Drufenbrock, Diane Papers". Milwaukeehistory.net. 18 February 2011. Retrieved 15 July 2018.
Party political offices
Preceded by
J. Quinn Brisben
Socialist Party vice presidential candidate
1980 (lost)
Succeeded by
Ron Ehrenreich