The Lone Pine Memorial, situated in the Lone Pine Cemetery at Anzac, is the main Australian Memorial on Gallipoli, and one of four memorials to men of the New Zealand Expeditionary Force. Designed by Sir John Burnet, the principal architect of the Gallipoli cemeteries, it is a thick tapering pylon 14.3 metres high on a square base 12.98 metres wide. It is constructed from limestone mined at Ilgardere in Turkey.

The Memorial commemorates the 3268 Australians and 456 New Zealanders who have no known grave and the 960 Australians and 252 New Zealanders who were buried at sea after evacuation through wounds or disease. The names of New Zealanders commemorated are inscribed on stone panels mounted on the south and north sides of the pylon, while those of the Australians are listed on a long wall of panels in front of the pylon and to either side. Names are arranged by unit and rank.

The Memorial stands over the centre of the Turkish trenches and tunnels which were the scene of heavy fighting during the August offensive. Most cemeteries on Gallipoli contain relatively few marked graves, and the majority of Australians killed on Gallipoli are commemorated here.

War service: Egypt, Gallipoli

Embarked Alexandria to join the Mediterranean Expeditionary Force, Gallipoli, 16 August 1915.

Reported missing, 21-25 August 1915.

Court of Inquiry, held at Tel el Kebir, 21 January 1916, concluded 'Reasonable to suppose dead. Killed in action, 22 August 1915'.

Statement, Red Cross File No 0870509T, 993 Signaller W.F. SIMMONS, C Company, 18th Bn (patient, 1st Australian General Hospital, Heliopolis), 9 February 1916: 'On Sunday 22.8.15 we made a charge: Dalmain was next to witness. The caualties were very heavy. After reaching the turks' trenches we had to retire. Dalmain did not reach the trenches, he was hit when about ten yards from them. A bullet struck him in the head. Witness saw him lying on the ground as they were retiring, and called to him, but got no response. Dalmain was then quite motionless, bleeding from the head, and witness is nearly certain he was dead then. Other men in same coy said they saw him lying there and they thought he was dead. Witness occupied same tent as Dalmain and they were chums. Dalmain came from Gilgandra. His name was Herbert and witness is sure as to his number. Witness describes him as a fine fellow. Witness appears to be an intelligent and reliable man.'

Second statement, 855 Pte T.A. DILLON, 18th Bn (patient, 4th Australian General Hospital, Randwick), 7 September 1916: 'Informant states that Dalmain was killed by Machine Gun at Hill 60. He was then with a man called W.S. Simmons of 18th Battalion, C. Coy. a returned soldier, at present not in Randwick.'