The Victoria Cross medal and ribbon is the top award for gallantry, and is awarded for "most conspicuous gallantry, or some daring or pre-eminent act of valour, self-sacrifice or extreme devotion to duty in the presence of the enemy or of belligerents".
The only living Victoria Cross holder, Corporal Willie Apiata, read the list of 16 VC winners before the plaque was unveiled, his voice choked with emotion.
Among the names inscribed on it was Wellingtonian Samuel Forsyth, part of the 2nd Auckland Battalion.
Forsyth showed "dashing leadership and total disregard of danger", his citation says, while his company attempted to capture the village of Grevillers in northern France in August 1918.
He was twice wounded while helping his company rush three German machine guns, and carried out "daring reconnaissance" missions to assist two tanks before being killed by a sniper.