If you go to the Index of the civil war in Missouri at www.home.usmo.com/~momollus/Mocwlink.htm and scroll down to Index to the civil war officers of Mo. Volunteers and Mo. state militia you can find--Lusk, William H. 2nd Lt. 10th Mo. Cav., Capt.& Maj. 10th Mo. Cav. Hope this is your guy