Hi Heather
You certainly have a lot of info there to look up...I have done the names thru the deaths (1921-1985) database. Some may fall outside those dates so I had no luck with those (or they may have left the state).
Here is what I found:
Walter John HOBBS
father: John Edward HOBBS
mother: Margaret Euphemia SMITH
death place: Geelong
Age: 50
year/reg: 1932/1663
Margaret Loch HOBBS
f: Wm MILLER
m: Jane TAYLOR
death plc: Geelong
age: 54
year/reg: 1935/14270
Helena Margaret HOBBS
f: Randolph PEARCE
m: Elizabeth MILLER
death plc: Geelong West
age: 63
year/reg: 1943/22155
Arthur Edward HOBBS
f: John Edward HOBBS
m: Margaret Euphemia SMITH
d plc: Geelong
age: 76
year/reg: 1959/27752
Annie Jane MANN
f: John Thompson SMITH
m: unknown
d plc: ADALE
age: 78
year/reg: 1935/2978
Horace Arthur MANN
f: Henry MANN (note not Horace)
m: Annie Jean SMITH
year/reg: 1958/25794
Edward James MANN (note: dates fit but not parents)
f: James MANN
m: Jane FEATHEBY
d plc: WIND
age: 69
year/reg: 1954/9377
Ida Victoria MANN
f: Henry MANN
m: Annie SMITH
d plc: Fitzroy
age: 93
year/reg: 1980/19424
Arthur Franklin SMITH
f: Arthur SMITH
m: Mary MESSENGER
d plc: Heidelberg
age: 85
year/reg: 1974/14175
John ThomPson SMITH
f: James SMITH
m: Ann THOMPSON
d plc: BALT
age: 82
year/reg: 1944/17744
Ada SMITH
f: Lewis STANSFIELD
m: Mary Ann SHAW
d plc: Melbourne
age: 78
year/reg: 1942/8809
Frances Ada SMITH
f; John Thompson
m: Ada STANSFIELD
d plc: Heidelberg
age: 65
year/reg: 1966/18134
Lewis Stansfield SMITH
parents as above
d plc: Hawthorn
age: 84
year/reg: 1971/13112
Ruby McKEE
parents as you have
D plc: Malvern
age: 82
year/reg: 1975/24536
David SMITH
parents as you have
d plc: EWICK
age: 79
year/reg: 1943/4216
Elizabeth E SMITH
f: Wm Leeming SMITH
m: Elizabeth Meaten WATERS
d plc: Malvern
age: 60
year/reg: 1925/14231
Arthur Leeming SMITH
parents as you have
d plc: Malven
age: 75
year/reg: 1968/22982
That should keep you going until I get to the marriages/birth indexes! :-)
Cheers
Cherilyn