When Did John Young Visit His Aunt Helen Comrie Nee Young IN New Zealand

This is my present research question. I know John Young was born in Methven, Perth, Scotland 1861. He was the son of Archibald Young (1822-1903) and Elizabeth Lawson (1834 - 1922). Archibald and Helen Young were brother and sister. Helen was born 1823 in Perthshire. She married James Comrie (1813-1881)in 1857 and shortly after they immigrated to New Zealand. The lived at Avondale and Pukekohe.

John Young supposedly visited New Zealand sometime after the Scotland 1881 Census and before 1893 when he sailed from Victoria to Western Australia. A reason he visited his Aunt was to tell her the news of the death of Dr William Marshall (1834-1884) her half cousin. He also visited Malmsbury, Victoria to inform Betsy Marshall the sister of Dr Marshall.

I am trying to piece together a timeline of is movements but do not know if he went to Australia first then to New Zealand and back to Australia or to New Zealand before Australia.

Wanting to hear from anyone who may have stories in their family about John Young or Dr William Marshall. The significance of Dr Marshall is that he had been a Royal Physician to Queen Victoria for 10 years.

Any information about the people mentioned would be helpful in constructing this time line.

Thank you