For its first use in combat, during the 1862 Peninsula Campaign, the Rogers train substituted a new telegraph instrument, the Beardslee Patent Magneto-Electric Field Telegraph Machine, invented by George W. Beardslee of New York.
For its initial military deployment, during the 1862 Peninsula Campaign, the Rogers train employed a new telegraph instrument, Beardslee Patent Magneto-Electric Field Telegraph Machine, developed by George W. Beardslee of New York.