The complete text of Dr. Carroll Messer's "PHILLIPS EXPEDITION OF FEBRUARY 1864 IN INDIAN TERRITORY", including pictures and maps, is online at

http://www.history-sites.com/itcw/2014%20Version%203%20bak.pdf

Dr. Messer has studied the region and it's geography extensively along with period accounts of the expedition and the Feb. 13th Battle of Middle Boggy.