Statistics for occurrence #1 of “Colonels Schaeffer” in chapter 1 of Col. John M. Harrell, Confederate Military History, a library of Confederate States Military History: Volume 10.2, Arkansas:

... call near Booneville, under command of Col. John S. Marmaduke. On June 16, 1861, General Lyon ascended the Missouri river to attack this force of about 800 men, having with him troops commanded by Colonels Schaeffer and Blair, Captain Steele and Major Osterhaus, detachments of other regiments, and Totten's artillery, a force greatly superior to Governor Jackson's little army. Colonel Marmaduke deemed this forc...
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