Morgan's rifleman were a group of hand-picked sharpshooters. They were recruited by Daniel Morgan, a Pennsylvania frontiersman and first cousin of Daniel Boone. In June, 1777, Washington had authorized Morgan to raise a special corps of 500 light infantrymen who were chosen for their marksmanship.
Given the official name Rangers, they came to be known as Morgan's Riflemen.
At the skirmish around Edge Hill, Morgan's riflemen were opposed by British Regulars, Hessians, Queen's Rangers, and a regiment of American Loyalists under Lieutenant Colonel, J.C. Simcoe.