Phone number listed for Jonathan is (215) 491-5594. His birth year was listed as 1969. Cities Jonathan has lived in before are Warrington, Elkins Park, Melrose Park and one other city. Jonathan's possible relatives are David S Knappenberger, Victoria K Knappenberger, Mary A Knappenberger and one other person. The current age of Jonathan is 55. Jonathan’s current address is 307 Overlook Ave, Willow Grove, Pa 19090.