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==References==
*[http://pabook.libraries.psu.edu/palitmap/bios/Gray__J_Glenn.html]
*[
*[http://www.coloradocollege.edu/Alumni/CyberTiger/Archives/200710/J.%20Glenn%20Gray%20Brochure.pdf]
*[https://www.coloradocollege.edu/academics/dept/philosophy/history-of-the-department/]
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