Soon after private Benjamin Vann of the 24th USCI enlisted in Allegheny City in February 1864, the provost marshal of Harrisburg detailed the private to serve as a cook. Vann first worked at Pennsylvania's Twenty-third Congressional District headquarters, then at Camp Reynolds near Pittsburgh. Almost eleven months later, Vann joined his regiment at Camp William Penn as a member of Company B. At some point that summer, he discovered that the time he labored before January 5, 1865, had not been counted towards his three-year military enlistment period. In early…