We found 5 people named William Callahan in Colorado, ranging in age from 45 to 90. Family members include Artie David, Ruth M, and Patricia. Their contact numbers include 720-209--9***, 303-362--0***, and 303-934--8*** corresponding to area codes 720 and 303. Records show residents with this name in Lochbuie, Lakewood, Greeley, and Littleton.
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