|Date of birth|
|Place of birth||Adelaide, South Australia|
|Religion||Church of England|
|Address||Adelaide, South Australia|
|Age at embarkation||19.2|
|Next of kin||Mother, Mrs F Nettleton, Military Road, Henley Beach, South Australia|
|Previous military service||Served for 3 years in Senior Cadets; 1 year in 77th Infantry, Citizen Military Forces.|
|Place of enlistment||Adelaide, South Australia|
|Rank on enlistment||Private|
|Unit name||48th Battalion, 11th Reinforcement|
|AWM Embarkation Roll number||23/65/4|
|Embarkation details||Unit embarked from Sydney, New South Wales, on board HMAT A54 Runic on
|Rank from Nominal Roll||Sergeant|
|Unit from Nominal Roll||48th Battalion|
|Fate||Effective abroad (still overseas)|
|Family/military connections||Brother: 3857 Pte Roy Harry Ernest CLAMP, 48th Bn, returned to Australia, 25 September 1919.|
War service: England
Embarked Sydney, 22 March 1918; disembarked London, England, 24 May 1918.
Admitted to 1st Australian Dermatological Hospital, Bulford, 5 July 1919; discharged, 14 October 1919; total period of treatment for venereal disease: 102 days.
Admitted to 1st Australian Dermatological Hospital, Bulford, 22 October 1919; transferred to Chiseldon Hospital, 14 November 1919; discharged from hospital, 15 April 1920; total period of treatment for venereal disease: 177 days.
Commenced return to Australia on board HT 'Bahia Castillo', 17 April 1920; disembarked Adelaide, 16 June 1920; discharged (termination of period of enlistment), Adelaide, 18 July 1920.Medal: British War Medal
|Sources||NAA: B2455, CLAMP Sidney William|