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<ul><li><b>Scope and content:</b>  Original Caption: Army Training School for Officers, Princeton University, Princeton, New Jersey.  Army students practicing trench digging, Col1l John A. Pearson, Commander of the Training Corps, and Capt. P. de Fournestraux of the French Army, who is instructor in trench digging, are standing in the foreground.</li></ul>
Photographer: Underwood &amp; Underwood</div>
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Unknown author<span style="display: none;">Unknown author</span> or not provided</div>
<a href="https://en.wikipedia.org/wiki/U.S._National_Archives_and_Records_Administration" class="extiw" title="en:U.S. National Archives and Records Administration">U.S. National Archives and Records Administration</a>