Statistics for occurrence #1 of “Washington, D. C.” in chapter 21, regiment reg241 of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

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Organized at St. Paul, Minn., November 23, 1861, to March 17, 1862, and mustered in March 20, 1862. Moved to Washington, D. C. , April 21-26, 1862, thence to Virginia Peninsula May 3-5. Attached to 1st U. S. Sharpshooters as Company I till May 30, 1862. Assigned to duty with 1st Minnesota Infantry, May 30 to November...
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