The first recorded 'vital event' was the marriage of John Hollier to Mary Ann Quantick in 1862, but nothing is known of this couple.
In 1859, Edward Hollier and his second wife Mary, together with their three children arrived at Lyttleton on the "Mary Ann". This family from Bedford were part of the Hollier family from Weedon Bec and Northants. One son, William Henry married in 1879 and had three girls, so this family has not left any present day Holliers.
In 1874, Henry Bruce Hollier married Emily Freeth. He was a bridge builder and is said to have been born in Staffordshire or perhaps Warwickshire around 1832-4. Many descendamts of this family remain in New Zealand today. But I have not located Henry Bruce Hollier, who one would imagine ought to have featured in the UK censuses of 1841 and 1851.
Further immigration occurred in 1882, when Joseph and Charlotte Hollier left Hollier's Farm at Mid Barton and settled in New Zealand. Joseph and several of his sons continued to farm well into the 20th century.
Around 1901-3, three brothers, William Edward, Alexander Isiah and Thomas Andrew, sons of William and Ann Hollier moved from Australia to New Zealand. They were descendants of the Hollier family from Sydenham, Oxfordshire.
Later emigrants include Judith Avril Hollyer and her father Peter John. Also Richard Norton Hollyer worked at the British High Commission in Wellington and his son John Michael (Mick) practices as a lawyer at Nelson. Richard John Hollier is a prominent genealogist in New Zealand. His father was born in England, and his family descends from the Barton Under Needwood Holliers.