Hey, Joe. I have seen this before and most folks "add a field" in the attribute table, make it a string, then: toolbox/ data management/ features/ add xy coordinates (data management). . .will you use U. S. survey foot or meters? this might help "The U.S. survey foot equals 1,200/3,937 m, or 0.3048006096 m. The international foot is 0.3048 meters." I hope you get a better answer!
Joe