"On March 22, l9l9 MG Ernest Hinds submitted this series of recommendations to the Chief of Staff, American Expeditionary Force on the suggested composition of the "New Artillery" which was neither heavy, field, or trench but preserved the best of trench artillery, through the use of mortars. Various comparisons with European mortars in use during WWI are indicated. The findings of the Trench and Mortar Board are complimentary to those of the Caliber Board which was also chaired by BG William I. Westervelt."--Abstract of printed Report Documentation Page (DD Form 1473).

Report from MG Ernest Hinds, Chief of Artillery, American Expeditionary Forces, to Chief of Staff, American Expeditionary Forces. Includes blueprints and photographic reproductions which depict mortars in World War I. Report dated, "March 22 1919".

Recommendations --Discussion of recommendations -- Trench artillery materiel of European armies.