Stewart's Independent Illinois Cavalry Battalion 
James N. Weer (C)
Augustus W. Stewart (C), Robert G. Wier (C),
 Stewart's Independent Cavalry Battalion later became companies A-F of the 15th Illinois Cavalry Regiment. Those six companies had all started out as independent cavalry companies and at the time of Shiloh they were still referred to by their independent designation. The companies which later became Stewart's Battalion were Stewart's, Carmichael's, Dollin's, O'Harnett's and Gilbert's. This info taken from the 15th Illinois Cavalry's roster and company letters are in reference to that organization.
 Died at Paducah, Ky., Apr 26, 1862
 Discharged, Apr 17, 1862; wounds
 Disch. Apr 17, 1862; wounds