John M. Buchanan (January 30, 1938 – February 3, 2025) was the pastor of Fourth Presbyterian Church in Chicago, Illinois, United States, the second largest congregation in the Presbyterian Church (USA).
[4] In a letter dated May 18, 2010, Buchanan announced that he would retire from his duties as pastor of Fourth Presbyterian effective January 31, 2012.
[8] Among his children is Susan Buchanan, who entered into politics as a supporter of the Sandinistas in the 1980s.
She gained notoriety online in a 2019 recorded outburst which went viral as an Oak Park trustee, in which she derided colleagues as "white males.
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