A work of considerable historical value, Roberts compiled these records of men who served in the Revolutionary War from the old muster and pay rolls of the different military organizations. These records indicate that New York furnished 41,633 men during the Revolutionary War, considerably more than the 17,781 General Knox, the first secretary of war, had originally reported to Congress. The entries include the names, rank and organization for the soldiers listed. The military forces at the time were divided into three classes: the Line-regiments in the US Service under General Washington, the Levies-drafts from the different militia regiments, and eligible civilians, called to serve outside the State during their entire term, and the Militia-who could only be called out of State for three months at a time. This work is divided into sections for each of these groups. From the Line, soldiers are listed from the 1st, 2nd, 3rd, 4th, and 5th regiments, as well as the Privateers and the 'Green Mountain Boys.' The section entitled the Levies lists the officers' names, their rank and the names of the enlisted men in these groups. The section on the militia includes groups from the following counties: Albany, Charlotte, Cumberland, Dutchess, Orange, Suffolk, Tryon, Ulster and Westchester. Three indices are included: an index to illustrations, an index by organization and counties, and an index to commanding officers.