I know nothing at all about his parents (just their names as given on the death certificate) or other siblings. There has never been any suggestion that any others of his immediate family emigrated.
I've often wondered if this fellow is a younger brother - has the same parent names and come from Tipperary.
DEATH CERTIFICATE
1882 Deaths in the District of Rushworth in the Colony of Victoria
No: 297 (BDM # 3201)
Died 3rd January 1882, Moora, Shire of Waranga, County of Rodney
PATRICK DWYER, Farmer
Male, 63 yearsCause of Death, Duration: Chronic Diseases of the heart and liver, Three years
Medical attendant, last saw deceased: J C Heily, Surgeon, Rushworth; November 1881
PARENTS: JOHN DWYER, Farmer, MARY Dwyer, formerly RYANINFORMANT: MATTHEW DWYER, Son, Moora
Registrar, Henry Hicks, registered 3rd January 1882, Rushworth
Buried: 5th January 1882, Rushworth cemetery
Undertaker: Merchant Coy; Witnesses: Matthew Dwyer, Patrick Linnott?
Born Tipperary Ireland, 35 years in Victoria
Married in Melbourne, aged 25 years, to Ann Lynch.
Issue: Matthew dead; John dead; Mary Ann 32, James 31, John 29, Matthew 27, David 25
