Do you have a printout of this record -
NZ BDM marriage
1865/5522 Margaret ELLENSWORTH marr. Henry Albert Holland HITCHENS
Among names for their children there is QUINTON used as given name, so likely this appears as an earlier family name, and, hopefully, from the HITCHENS side of the family.
The marriage certificate will not ask for parents' names but will name witnesses....grooms occupation.....church where they are married. Witnesses might be relatives.
Using BDM NZ Index I see QUINTONs in New Zealand.