_Texas in the Confederacy: Military Installations, Economy and People_ by Bill Winson (1978) just says:
Camp Speight (Brazos)--Located near Millican on Peach Creek. This encampment, named in honor of Colonel Joseph W. Speight, was established to train the "Waco University Guards," (Houston Tri-Weekly Telegraph, June 27, 1862).

Vicki Betts