Mary Jane Theis: American justice (1949-) | Biography
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Mary Jane Theis
American justice

Mary Jane Theis

Mary Jane Theis
The basics

Quick Facts

Intro American justice
Is Judge
From United States of America
Field Law
Gender female
Birth 27 February 1949
Age 74 years
The details (from wikipedia)


Mary Jane Theis (February 27, 1949) is an Illinois Supreme Court Justice for the First Judicial District in Cook County, Illinois.

Early life

She was born Mary Jane Wendt in Chicago, Illinois, to Eleanore and Kenneth Wendt, a member of the Illinois General Assembly and a longtime judge in Cook County.

She received her bachelor's degree from Loyola University Chicago and her law degree from the University of San Francisco School of Law.



Theis was Assistant Public Defender in Cook County from 1974 to 1983.

Political career

Theis became a judge in 1983, serving as Associate Judge (1983–1988), Circuit Court Judge (1988–1994), and Appellate Court Judge (1993–2010). The Chicago Tribune endorsed her for election, citing her "universally accepted expertise on judicial ethics, family law, sentencing, fairness." She previously served as Chair for the Illinois Judicial Conference's Committees on Education and Judicial Conduct, as well as on the Illinois Supreme Court's Rules Committee. Her term expires in 2020.


Theis has taught at law schools in Chicago (Loyola University School of Law, Northwestern University School of Law, and the John Marshall Law School) and at Illinois and Chicago bar association conferences and seminars.

Honors and awards

Awards which Theis has received include a Lifetime Achievement Award from the Illinois Judges Association, the Mary Heftel Hooten Award from the Women's Bar Association of Illinois, and the Access to Justice Award from the Illinois State Bar Association.

Personal life

Theis is married to John T. Theis, and they have two children and four grandchildren.

The contents of this page are sourced from Wikipedia article. The contents are available under the CC BY-SA 4.0 license.
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