Statistics for occurrence #1 of “Springfield, Ill.” in chapter 11, regiment IL11, section c.11.21 of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

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Organized at Springfield, Ill. , and mustered in April 30, 1861, for three months service by Capt. John Pope, U. S. A. Ordered to Villa Ridge, Ill., May 5, and duty there till June 20, and at Bird's Point, Mo., till July 30. ...
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