FM 6-70 1939 (Obsolete)

This manual prescribes the duties to be performed in the service of the piece by the personnel normally assigned to one howitzer section of the firing battery. The document provides information on organization, posts (mounting and dismounting), movement of the carriages by hand, unlimbering and limbering, uncoupling and coupling, preparation for action and march order, duties in firing, and care and maintenance of materiel.