I found this article in the PERSI Index - "Cheyenne's Greek Community" article published in the Annals of Wyoming: the Wyoming History Journal, Cheyenne, WY; Summer 2006, Vol. 78, Issue 3
If you are interested in ordering a copy of this article see my previous posting "Texas - Greek Immigrant Articles" for more details on PERSI and how to order.
Good luck with your Greek family history research.
Georgia Keilman nee Stryker (Stratigakos)