I find the following volunteer Cavalry Company in the 15th Regiment of Pope County with officers commissioned on 20 August 1860

W. W. Raukin Capt
Robert D. Howell 1Lt
John W. Madden 2Lt
Fieldiing Guthre 3Lt

Then on 29 December 1861

P. W. Parker, Capt, vice W W. Raukins Resinged