Here is a lead in to the appropriate references. I have some more information if anyone cares to private email me.
Legend has it that two sharpshooters, Daniel Wells and Henry McComas, made Ross their target. Whether they actually fired the shots will never be known. The boys fell almost immediately to British bullets. A monument immortalizes their valiantry. Carried to the rear, Ross died a few hours later.
http://www.bcplonline.org/info/histo...cohistory.html (Baltimore County Public Library
I would note that there is significant dispute as to who fired the shot and no reliable contemporary estimates of the distance that I have been able to find. Apparently the British reurn fire was as effective as the Americans.