Source:The War of the Rebellion: v. 1-5 [serial no. 122-126] Correspondence, orders ... By United States. War Dept
First. Those physically or mentally unfit.
Second. The only sons, or one of the sons if there be more than one, of aged, infirm, or widowed parents, and the only brothers of orphan and the fathers of motherless children, in the cases specified in the act.
Third. Two persons from every family and household of father and sons, from which two persons have already been supplied to the military service of the United States.