Statistics for occurrence #1 of “Rear Admiral R. N. Stembel” in chapter 14 of Admiral David D. Porter, The Naval History of the Civil War.:

... Rear Admiral R. N. Stembel
Commanding positions of forts Henry and Donelson. Grant given permission to attempt the capture of the forts. Foote...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.