Patti:
The KEITH family of Titus County is my direct lineage. You have Jonathan and Oliver Perry listed - brothers. However, there were two other brothers - Charles with the 9th TX Infantry, and Jacob, also with Co. F 18th TX Infantry. Only Jonathan survived the war. Oliver Perry was killed at the "Battle of the Ozarks," and buried in Camden, Arkansas. Charles and Jacob died while in camp near Honey Springs, TX during winter 1862/1863. Coincidentally, their father (William) also died from exposure while trying to retrieve Jocob and Charles.
I have found no record of any State Troop affiliation on any of these men.
Wes