Some aspects of this sequence of events are a little odd.
I feel the details of the obituary may be inaccurate.
According to the MC, the usual home of both parties was Christchurch.
1877 Henry MURRAY ,a clerk Christchurch in the Town Clerk's office.
https://paperspast.natlib.govt.nz/newspapers/GLOBE18770207.2.12 1884, both parties have left Christchurch, and marry in Sydney where neither of the bride's parents appear to be witnesses. Instead, one is a local solicitor.
I make no sightings of either of Eileen's parents in NZ or Australia and note father's occupation is squatter, with no reference to a military connection in 1884. Why would he squat? Wasn't there an army allowance. Did he have experience on the land?
Later Electoral Roll listings for the MURRAYs show them back in Christchurch and Henry seems to be still in his same job at the Town Clerk's office as a clerk. The first birth to the couple is in NZ, 2 or 3 years after the wedding.

Sue