Despite the Christianisation of the Maori and despite the Crown being the Head of the Anglican Church, there is nothing to suggest that there was any religious purpose for Hautere Cross Railway Station.
So why is there a 'Cross' in its name?
No great mystery.
This station was born way back in the Pioneering Days of the late 19th early 20th century. And it was also then that its history stopped. Nothing of the station or its yard can be seen today in this sparsely populated rural area.
About 70 km north of Wellington, on the North Island of New Zealand, Hautere Cross was a settlement on the juncture of Totaranui Road and Hautere Cross Road (map); the latter being a road crossing from Te Horo1 on the west coast towards Otaki River in the east. (Yes, you've guessed: The crossing gave the word 'Cross'.)
In 1886, not long after the Land Wars2, the Wellington & Manawatu Railway line through Hautere Cross was completed to help populate the area with British settlers. The railway company bought land from the Māori in the form of company shares and the allocation was reported to have been generous.
The station would have been used by farmers to move their produce to the main line on the west coast and to bring in supplies. The Hautere Cross name was simply adopted from the name of the settlement and its 'Cross' just meant the route crossed from Te Horo to the river.
Other railway stations with 'Cross' in the name
1 : Te Horo is Māori for 'landslide')
2 : Land Wars between Māori tribes and the Crown, backing the white settlers 1845-1872 - see http://www.newzealandwars.co.nz/