If you know the other officers, Parks appears in Co. E, 17th Ark...you can check and see if they went with him:
http://www.couchgenweb.com/civilwar/17thcoe.html

Crawford is in Co. F, Gordon's 4th Ark Cav:
http://www.couchgenweb.com/civilwar/4thcof.html

Lewis was in Co. A, 2nd Cherokee Mtd Rifles (record on fold3)

Gray was Co. B, 34th Ark. He was wounded here at PG and died of his wounds. His grave was found just this past week south of Cane Hill.
http://www.couchgenweb.com/civilwar/34-b.html

Working on Hulee.