Dear Robert, My first answer and from what an interesting source. A daughter of my great great great grandfather Joseph A. Sewell and his wife Sarah Spurling married James Thrift Ball son of Robert Ball! You write to Maps and Publication Center 12000 Government Center Parkway Suite 156 Fairfax, Virginia 22035-0000 This quite some time ago was free to pick up at the Fairfax Archives but I believe it is now $1. Again it is the 1770 Nonimportation Broadsides and is a wealth of information including many signatures of Fairfax County residents at that date who were in agreement not to buy goods from England as a form of protest to taxation. I believe if you find your ancestors name it can be used as a proof for joining the DAR. My signature is Nelson Reid, my great great great great grandfather. I will be waiting to hear what you know of your Ball connection.