'''''Risdon''''' was a teacher for a group in [http://en.wikipedia.org/wiki/Colorado_Springs,_Colorado Colorado Springs, CO]. For his lessons, follow [https://nordan.daynal.org/wiki/index.php?title=Category:Risdon '''''this link'''''].
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'''''Risdon''''' was a teacher for a group in [https://en.wikipedia.org/wiki/Colorado_Springs,_Colorado Colorado Springs, CO]. For his lessons, follow [https://nordan.daynal.org/wiki/index.php?title=Category:Risdon '''''this link'''''].