The enthusiasm for the
Volunteer movement following an invasion scare in 1859 saw the creation of many Rifle, Artillery and Engineer Volunteer units composed of part-time soldiers eager to supplement the Regular
British Army in time of need. Two such units were the
1st Gloucestershire Engineer Volunteer Corps (EVC) formed at
Gloucester on 28 January 1861, and the
2nd Gloucestershire EVC formed at
Bristol on 10 April 1861 by employees of the
Bristol and Exeter Railway. Administratively, the 1st Gloucester EVC was attached to the
1st Administrative Battalion, Gloucestershire Rifle Volunteer Corps (later the
5th Battalion, Gloucestershire Regiment) and the 2nd EVC was attached to the
1st Gloucestershire Artillery Volunteers. However, in July 1867 they were both included in a new
1st Administrative Battalion of Gloucestershire Engineer Volunteers, with its headquarters at Bristol. The Administrative Battalion also included the
1st Somersetshire EVC when that was formed the following year, and the
1st Devonshire EVC joined in 1869.
Captain James Henry Dowling of the
Royal Glamorgan Militia was appointed to command the 1st Gloucester EVC on 11 July 1861, and was promoted to
lieutenant-colonel to command the 1st Admin Bn on 28 May 1870. With the reorganisation of the
Volunteer Force in 1880, the Gloucestershire Admin Bn was consolidated as the
1st Gloucestershire (Gloucester, Somerset and Devon) EVC, with the 1st Devon providing E Company at
Torquay and F Company at
Exeter, and the 1st Somerset providing G and H Companies at
Nailsea and I Company at
Weston-super-Mare. However, in 1881, the 2nd Gloucestershire left the battalion and became an independent unit once more, as the
2nd Gloucestershire (The Bristol) EVC. In 1885, the 1st Gloucestershire Engineers formed a submarine mining company at
Cardiff to cover the
Severn Estuary. At the same time, the submarine miners were constituted into a separate branch of the RE Volunteers, and the Cardiff company became independent as the
Severn Division Submarine Miners. ==Territorial Force==