i suggest you start backwards from the first fact i found
Fact see
https://www.familysearch.org/ark:/61903/1:1:FLJT-R22John H Considine Burial 01 Jan 1890 Sydney, New South Wales, Australia Ballarat age 52 Ann Considine
Ballarat is a city located on the Yarrowee River in the Central Highlands of Victoria, Australia. source wikipedia
if John arrived in Ballarat Victoria he should have other records eg
Victoria
1839-1871 - Index to Assisted British Immigration 1839-1871
1839-1923 - Australia, Victoria, Inward Passenger Lists, 1839-1923
at FamilySearch — index and images
however on ancestry.com.au has heading All Victoria, Australia, Assisted and Unassisted Passenger Lists, 1839-1923 results for John Considine it has one record for a John Considine no further clues unless his name is spelt John Constantine both entries say arrival port Melbourne then I changed the date search from 1860 = or – 5 to 1860 =or- 2 , it said no record
which suggests after 1862 or before 1858 you would need to join or it’s the wrong John
alternatively others have found Australian migrants on the Travel and Migration
section of findmypast
https://www.ballaratgenealogy.org.au/resources/ballarat-cemeteries-indexCONSIDINE Austin B. d.30 Jan 1928 36 Gordon
CONSIDINE James A 16 SEP 1952 76 Creswick
CONSIDINE Joseph 27 Daylesford
CONSIDINE Lucy Margaret 14 APR 1969 84? Creswick
CONSIDINE Philip 8 MAR 1897 79 Creswick
https://ballaratgenealogy.org.au/index.php?option=com_content&view=article&id=360&catid=15from above
Thomas John Considine 12 may 1991 aged 63
https://www.findmypast.co.uk/search/results?firstname=john&firstname_variants=true&lastname=considine&yearofbirth=1838&yearofbirth_offset=2from above
Considine John 1839 — 1859 South Australia, Passenger Lists 1847-1886 South Australia, Australia
if his father was alive he could be in the following list griffiths valuation for speed
https://www.failteromhat.com/griffiths.php for detail see
http://www.askaboutireland.ie/griffith-valuation/seeConsidine Michael Clonroad Beg Town of Ennis High Street Drumcliff Clare
Considine Michael Clonroad Beg Town of Ennis Turnpike Road Drumcliff Clare
Considine Michael Kilquane Drumcliff Clare
Considine Michael Lifford Drumcliff Clare
Considine Michael Lifford Town of Ennis The Borheen Drumcliff Clare
Considine Michael Drumline Drumline Clare
Considine Ml., Jr. Knockreddan Inchicronan Clare
Considine Ml., Sr. Knockreddan Inchicronan Clare
Considine Michael Kilfenora Kilfenora Clare
Considine Michael Bolooghra Kilfiddane Clare
Considine Michael Castlequarter Kilfintinan Clare
Considine Michael Shantraud Town of Killaloe Cross Road Killaloe Clare
Considine Michael Cratloe Killeely Clare
Considine Michl. Cratloe Killeely Clare
Considine Michael Ardeamush Killilagh Clare
Considine Michael Craggycorradan East Killilagh Clare
Considine Michael Island Killilagh Clare
Considine Michael Knockacarn Killilagh Clare
Considine Michael Poulnagun Killilagh Clare
Considine Michael Acres Kilmacduane Clare
Considine Michael Drumellihy (Westby) Kilmacduane Clare
Considine Michael Ardnahea Kilmacrehy Clare
Considine Michael Ballycotteen, South Kilmacrehy Clare
Considine Michael Ballylaan Kilmacrehy Clare
Considine Michael Caherycahill Kilmacrehy Clare
Considine Michael Kilconnell Kilmacrehy Clare
Considine Michael Laghcloon Kilmacrehy Clare
Considine Michael Liscannor Kilmacrehy Clare
Considine Michael Village of Liscannor Lower Quay Kilmacrehy Clare
Considine Michael Village of Liscannor Upper Quay Kilmacrehy Clare
Considine Michael, Jr. Ballyduneen Kilmihil Clare
Considine Michael, Sr. Ballyduneen Kilmihil Clare
Considine Michael Knockalough Kilmihil Clare
Considine Michael Lack West Kilmihil Clare
Considine Michael Sheeaun Kilmihil Clare
Considine Michael Knockaskeheen Kilmoon Clare
Considine Michael Knockaskeheen Kilmoon Clare
Considine Michael Knocknahila Beg Kilmurry Clare
Considine Michael Cooguquid Kilnamona Clare
Considine Michael Kilrush Town of Kilrush Hector Street Kilrush Clare
Considine Michael Gortnaboul Kilshanny Clare
Considine Michael Moyree Commons Ruan Clare
try to get more aussie information first for free then you can see if you pay to get the information
good luck onwards hoping others will reply to your answer