While looking for detailed accounts of Captain Trifton's raid on Bahala, Mississippi during Grierson's Raid I found what I was looking for in Google Books. Check-out the series "Armor US Army Armor School, United States Armor Association, United States Cavalry Association- Journal of the U.S. Cavalry Association written in the 1900s. I found great detail not found in most accounts on Grierson's Raid in volumes XIV and XV.
http://books.google.com/books?q=editions:0lY8P30UEga6QVDbF_&id=vJEFAAAAMAAJ
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David Upton