Statistics for occurrence #1 of “Castor” in chapter 13, regiment IW32 of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

... Garrison duty at Cape Girardeau, Mo., till March 14, 1863. Moved to Bloomfield March 14 and return to Cape Girardeau April 21. Action at Cape Girardeau April 28. Pursuit of Marmaduke to Castor April 28-May 5. At Cape Girardeau till July. Moved to Bloomington July 10, thence march to Clarendon, Ark., July 19-August 8. Steele's Expedition to Little Rock August 8-September 10. ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Castor 35 2 1 0 0 user votes
George E. Castor 4 0 0 0 0 user votes

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