I am trying to connect the two Russell's above. Cecil attended Lancing College as did John Russell's sons Charlie, Hubert, and Leonard - see below. In the Lancing Register it refers to Charlie, Hubert and Leonard as being cousins of Cecil Henry, but I cannot find how this connection works - perhaps the register meant second cousins ? John Russell became a well known brewer in Kent.
Extracts from the Lancing Register covering 1848 - 1900 ( from the web site
https://archive.org/stream/registerofsnicho00lancuoft/registerofsnicho00lancuoft_djvu.txt) :-
791.Russell, Cecil Henry St. Leger, born 8 April, 1862, eldest son of
Richard Russell, Esq., Receiver-General of Trinidad, entered S. H. as
Exhibitioner, Sept., 1873, lef t July, 1881 (Football XL, 1877-81 ;
Cricket XL, 1877-81 ; Captain, 1879-81 ; Prefect, 1878 ; Captain of
School, 1879-81). Scholar of Trinity College, Oxon, 1881 ; Second
Class Mods.; Second Class Lit. Hum.; Chancellor's Latin Verse, 1883;
Gaisford Greek Verse, 1883 ; Gaisford Greek Prose, 1884; Tutor to Lord
Hugh Cecil, 1885-86; Assis- tant Master St. Paul's School, 1887-94 J
VIth Form Master, Clifton, since 1894. Married, 29 July, 1890,
Blanche Wellsted, daughter of Arthur H. Wansey, Esq., of Stoke Bishop,
Bristol. Address 40, Clifton Park Road, Clifton, Bristol.
1076. Russell, Harley, born 24 Sept., 1865, second son of Richard
Russell, Esq. (see No. 791), entered S. H. Jan., 1 88 1. Died at
Lancing 14 March, 1882 buried in Lancing Churchyard. (Brother of
791.)
1208. Russell, Charlie, born 12 June, 1870, son of John Russell, Esq.,
of Rosherville, Kent, entered S. H. Jan., 1883, left Dec., 1886.
Subsequently in Switzerland. Now Brewer and Maltster. Address
Hillside, Milton next Gravesend, Kent. (Brother of 1209 and 1344 ;
cousin of 791, &c.)
1209. Russell, Hubert, born 31 Aug., 1871, son of John Russell, Esq.
(above), entered S. H. Jan., 1883, left July, 1887. Address
Glenthorne, Gravesend. (Brother of 1208 and 1344 ; cousin of 791,
&c.)
1344. Russell, Leonard, born Christmas Day, 1872, son of John Russell,
Esq., of The Mount, Rosherville, entered S. H. Sept., 1885, left Dec.,
1888. Subse- quently at R. M. A., Sandhurst ; 2nd Lieut. East
Lancashire Regt., 1895; Lieut. 2nd Batt., 1897. Address Rhani Ket,
Bengal, India. (Brother of 1208 and 1209 ; cousin of 791, etc
