NZ Marriages - none for a John PAULIN (or similar) that I could find.
NZ Electoral rolls - nothing for a John PAULIN - occupation: mariner / seaman etc.
[Note: For the time frame 1860-1870, only (usually) males listed on government or provincial rolls and the qualifcation for inclusion on same, was a property holding of a certain value. ]
PapersPast :
https://paperspast.natlib.govt.nz"Wanganui Herald" - 28 December 1882 - page 2/ column 4
.... mentions "John
PAULINE, a sailor, fined for drunkeness".
[No further info found for that person. ]