Might this be him?
William Lassiter, Private, Company K (Montgomery Boys), 34th North Carolina Infantry (State Troops),Volunteer, 21 year old Farmer, born in Montgomery, N. C., 5’ 6”, enrolled for active service September 9, 1861 at Troy,
N. C., entered into service October 25, 1861 at Camp Fisher for one year, died of disease November 26, 1861, no further records
Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of North Carolina