You will find it at the National archives of Australia.https://recordsearch.naa.gov.au/SearchNRetrieve/Interface/ViewImage.aspx?B=12028786&S=1221
There are over 900 Murrays recorded in 1967.The names of ships and ports are apparently not indexed, so if you include them in your search it returns "no entry".There is no Anna Maeve Murray in the list for 1967 but there is a Maeve Anna, arrived 22 Oct 1967, and Patrick arrived the same date. Suggest you search for each child by first (or second) forename from here:https://recordsearch.naa.gov.au/SearchNRetrieve/Interface/SearchScreens/PassengerSearch.aspxADDED It seems to require all forenames. Will not retrieve Maeve alone. Will retrieve Maeve *.
If you use the basic search page Enter Murray, Patrick Limit to 19674th entry down lists all the family. Potentially all living so I am not posting here