Enlisted at the age of 39
Main BodyTrained
Avondale, AucklandTransfer to England
Steamship RuapehuMarched in to the Company Training Camp, Falmouth
Embarked for France
The Company joined the underground warfare in the North of France
Detached to Mine School
Rejoined the Company
Promoted 2nd Lieutenant
Granted leave
Rejoined the Company
Granted leave
The Company began the operations to connect old underground quarries in Arras in order to accommodate thousands of soldiers for an upcoming battle
Rejoined the Company
Promoted Lieutenant
British Offensive
Battle of ArrasThe Company was employed to rebuild a major road leading to the Front during the battle
The Company moved to Monchy, ten kilometres east of Arras, to work on the fortification of the new front line
Granted leave
Rejoined the Company
Detached to Rest Camp
Rejoined the Company
Detached to the Cambrai sector
Gassed
Admitted to hospital
Embarked for England
Admitted to hospital
Marched in to NZ Expeditionary Force Headquarters, London
The Company was still carrying out the digging of underground premises and defences on the Front near Arras
German Attacks
Spring OffensiveThe Company was engaged in the defence of Arras by digging new trenches and dug-outs under constant enemy shellfire
Transfer to New Zealand
Troopship UlimaroaClassified unfit for service on the field
End of Service
DemobilizationAnthony Byledbal, “World War I Timeline of Ralph Henry Jackson“, New Zealand Tunnellers Website, NaN (2009), Accessed: . URL: www.