Is this the person you are researching?
SA BDM
1853 16/1 MORRIS Richard marr. RUNDLE Mary Ann @ Adelaide
births
1853 MORRIS Eliza
parents Richard MORRIS / Mary Ann RUNDLE @ Adelaide 4/190
1861 MORRIS Harriet
parents Richard MORRIS / Mary Ann RUNDLE @ Adelaide 20/57
1862 MORRIS Mary Ann
parents Richard MORRIS / Mary Ann RUNDLE @ Adelaide 20/400
BDM VIC death
MORRIS Albert
parents MORRIS Richard / Mary Ann (Rundle) 1935 18906
died Warrnambool age 58
South Australian Register 2 Nov 1864 p2
https://trove.nla.gov.au/newspaper/article/39126541?...Richard MORRIS not supporting Mary Ann MORRIS...five children....
Evening Journal 22 Mar 1872 p2
https://trove.nla.gov.au/newspaper/article/196738920?...Richard MORRIS son of Mary Ann MORRIS....
If Richard did not stay with his family, I doubt that the QLD death, 1885, is him....with good details about his parents.
You have the marriage certificate, 1853. What church are they married in.....who are the witnesses.....does Richard sign his name?
Where do you see a suggestion of occupation for him?