I am looking for a Colaw family that at least at some point was in PA, then VA after the Revolutionary War. It is a very uncommon name, we are presuming because that is not the original form. But there is a John Colaw, spelled just like that in 1781, in Bridgewater Twp, Somerset Co., NJ paying taxes. I am thinking there must be other references to him. If he was paying taxes, he must have owned land, right? Where can I try to find out more?