I have collected a litle information on the 11th and 52nd GA Infantry, regiments of my ancestors. The oldest brother of the family, my gg-granduncle, William Riley Garrett was with the 6th Cavalry. I have almost no information at all on the 6th Cavalry, however should I find any, I will certainly be glad to share. I look forward to reading your book as information is so sparse, I have heard a little of the romantic proclivities of Col. Hart..lol.
James Horton