"These 1932 regulations prescribe a systematic procedure for the performance of duties in the service of the piece by personnel assigned to howitzer sections of batteries equipped with 155-mm, howitzer materiel, M1917 and M1918."
These 1942 lessons were prepared under the direction of the Commanding General, Field Artillery Replacement Training Center, Fort Sill and prescribed for use as an aid to training.
This 1942 manual prescribes the duties to be performed in the service of the piece by the personnel normally assigned to one-gun seciton in the firing battery.