Basically, the 1st Reserves are from Lancaster County, Pa.  Historicaly company D came from the town of Conestoga (yes, as in Conestoga wagon fame), though some from the company also came from York County across the river.  But as with all reenacting companies, if you plan to do the battle of Gettysburg, no matter where you live, you need to drive there to do the battle.  Hence, you don't have to live in the same town as the company you join.  We've had folks from Altoona, Philadelphia, and Harrisburg join our company.  And anyone, from any state, is welcome to join us.  If you'd like an address to send to, that would be 1st Penna. Res., Co. D, P.O. Box 102, Washington Boro, Pa.  17582.