Could he be Hugo King who married Margaret Carroll in 1872?
Record information
Event: marriages
Registration number 952 / 1872
Family name: KOENIG
Given name(s) Hugo
Personal detail
Spouse's family name: CARROLL
Spouse's given name(s) Margaret
Margaret King died in 1930 and was a widow
The Age (Melbourne, Vic. : 1854 - 1954) Fri 22 Aug 1930
Page 1
Family Notices
KING. — On the 2lst August, at St. Vincent's
Hospital, Margaret, widow of the late Hugo
King; loved mother of Edward, James and
Victor, aged 79 years. R.I.P.
https://trove.nla.gov.au/newspaper/article/202452480?searchTerm=%22hugo%20king%22#Record information
Event: deaths
Registration number 9500 / 1930
Family name: KING
Given name(s) Margaret
Place of event: FITZROY, Australia
Personal detail
Mother's name Margaret
Mother's family name at birth LYON
Father's Name: CARROLL James