Statistics for occurrence #1 of “Fort Gibson, Cherokee Nation” in chapter 50 of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

... Fort Gibson, Cherokee Nation
Organized at Leroy, Kansas, May 22, 1862. Attached to Dept. of Kansas to August, 1862. 3rd Brigade, Dept. of Ka...
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