Statistics for occurrence #1 of “Capt. Plympton” in chapter 1 of Waitt, Ernest Linden, History of the Nineteenth regiment, Massachusetts volunteer infantry , 1861-1865:

...eus, on July 23, 1861, having added to these three in succession, Capt. Wass's Tiger Zouaves, of Boston, Capt. Mahoney's Company, also from Boston, Capt. Weymouth's Company from Lowell and Cambridge, Capt. Plympton 's Company from Boston, Capt. Russell's Company from Boston, Capt. Rice's Company from Cambridge and Capt. Wilson's Company from Boston. The field officers were: Edward W. Hinks—Colonel....
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