He continued with the Army of the Potomac through the remainder of the Peninsular Campaign and through the Maryland Campaign .
On June 1 , 1862 , during the Peninsular Campaign , Comstock was appointed chief engineer of the II Corps .
Comstock continued with the Army of the Potomac through the remainder of the Peninsular Campaign and through the Maryland Campaign .
On June 1 , 1862 , during the Peninsular Campaign , Comstock was appointed chief engineer of the II Corps .