This is a transcript of his death certificate from 1884:
Marine Register Book of Deaths
Ship: Fort George
Sailed from the Port of Liverpool on 12 April and arrived at Melbourne 12 July.
Date of death: 30 June
Place of Death: Latitude 45 degrees South, Longitude 109 degrees East
Name: Jerry Ryan
Rank or Profession: Able Seaman
Cause of Death: Drowned, washed overboard
Name & Surname of Father and Mother: Not Known
Informant: John Houston
Informant Occupation: Ship Master
Informant Address: 19 Ardgorom (?) Street, Greenock (?)
Description: Nobody saw him go overboard. The sea passed over the ship & when cleared away he was gone. List of clothing: One chest but nearly empty, one Oil coat, one hat.
Burial: Washed overboard at sea
Where Born: New York
I hope this helps someone's research.