Russell as a military man

Russell was gazetted as a Sub-Lieutenant (Supernumerary) in the 23rd Middlesex (Inns of Court) Rifle Volunteer Corps on 28th March 1877.

The modern history of the Regiment begins in 1859 with the formation of the 23rd Middlesex (Inns of Court) Rifle Volunteer Corps; it became the 14th Middlesex in 1889. The Regiment was attached, in its later years, to the Rifle Brigade and also formed part of the 2nd London Volunteer Brigade and the "Grey Brigade". See more here and here