September was an active month for the 8th Missouri Cavalry. Unfortunately, it was not a winning month for the 8th usually (well, I guess this depends on your perspective as if it was good or bad that the 8th lost those battles!)
At any rate, follow the links to the following battles fought in September.
Bayou Forche (Little Rock) - September 10, 1863
Pilot Knob (Ft. Davidson) - September 27, 1864
Of course, Pilot Knob is the well known battle. Technically, it was a Confederate win, but the cost to secure the retreat was so high, it must be termed a loss. I am also pretty sure that Colonel William Jeffers of the 8th MO Cavalry was captured here at Pilot Knob as well.