Frank Clark embarked from New Zealand twice. On 11 August 1914 he departed with the Samoa Advance Party, which took over the control of Samoa on August 29. After returning to New Zealand he had two days before embarking for Suez. After arriving in Suez on the 25 May Frank Clark travelled to the Dardanelles where he joined the 1 Battalion, Auckland Regiment on June 8.

On 9 September F. Clark was bivouacked in fields on the edge of the battlefield at Fricourt Wood. On the morning of the 15 September, 1 Auckland moved to Mametz Wood and the next day the men marched to the battlefield and took over the line. Orders were given for an attack on Goose Alley, which were subsequently cancelled, so the Battalion dug the left defensive flank for the New Zealand Division. During this day F. Clark received gunshot wounds to his left thigh, which was serious enough to require evacuation to England. He was admitted to No. 1 NZGH, Brockenhurst on 24 September. He later died of these wounds. (Church, 2002, p.42)

Attended Auckland Grammar School.

The Museum Library Archives collection hold a souvenir album/autograph book belonging to Sergeant Bernard McGeehan and was donated by his family in 1999. The first page of the book contains the signatures of 'Officers and friends of B. McGeehan 3rd Auckland Regiment, Radio Station, Apia, Samoa'. Private Clark was one of those who signed. AWMM