The first article was written by Col. John Lemp, FA and Maj. Ernest C. Hatfield, Cavalry for the April, 1944, issue of the Field Artillery Journal. Col. Lemp draws from his experience as the Commanding officer of the 644th TD Bn while Maj. Hatfield draws from his experiences as a Captain, serving as an aide to Major General Orlando Ward, Commander of the 1st Armored Division during actions in Tunisia.
The second article was written by Lt. Eugene T. Oborn and provides a pocket reference for key Tank Destroyer personnel supplying materials needed for indirect firing positioning.