Hi Heidi, no I am not related, I was just making suggestions :)
Ok, to try and lay things out a bit clearer:
Unknown(m) Patterson was an alias for a German immigrant of unknown original German name. He was possibly a german soldier. He was a carpenter (house builder). There may be links to German aristocracy.
Unknown(m) Patterson married Unknown(f) Brown, and had a daughter, Thelma Gladys Patterson (b1917, Richmond, Melbourne). They lived in the Research area (Warandyte Road?). After Unknown(m) Patterson's death, Unknown(f) Brown lived in Eltham with William Charles Clarence Risely (prob no marriage, Risely buried in Castlemaine)
Thelma Gladys Patterson had a daughter, Dawn Lorraine Patterson before marrying Robert Burnside and having more children.
Dawn Lorraine Patterson maried George James Overton.
Some questions that might help pick out details:
* do you know when Unknown(m) Patterson might have died? There's no relevant Patterson buried in Warandyte cemetery..http://mapping.fcmp.com.au:1001/Pubmapping/index.aspx
* do you know if the Unknown(m) Patterson might have applied for naturalisation at any point? If so, the National Archives might have records of it... there are 309 matches in the Naturalisation records to 'Patterson' tho, without a first name that might be a trial, especally if its speculationhttp://recordsearch.naa.gov.au/NameSearch/Interface/NameSear...
* Is this possibly the Unknown(f) Brown?
Family Name: PATTERSON
Given Name(s): Sylvia Eileen
Father's Name:Brown Richard
Mother's Name: UNKNOWN
Death Place: Apol
Registration Year: 1974
Its the only exact matching record before 1980 *but* bear in mind that if the surnames aren't quite right, this might not be the right person - you probably want to check for Paterson, Browne, and possibly even Risely, if she lived with William Risely and adopted his surname...
* do you know when Robert Burnside or Thelma died? Where they were buried?
* were the Patterson/Brown folks at Camp Pell as part of the military, as german detainees, or were they there as housing after WWII? If the first two, you might be able to find information from military sources
* Dawn's uncle Russell - no idea if he was one of Thelma's brothers (an actual uncle) or one of her grandparents (Patterson or Brown)'s siblings? If it was actually a razor gang linked death, it'll be in the 1920s? If so, well before Dawn's birth, so it'll be a 2nd hand story...
You can try searching archived newspapers for details, but its a needle in a haystack without a better idea of names: http://trove.nla.gov.au/newspaper/
For what its worth, there are no births for anyone named Thelma Gladys registered in Victoria between 1915 and 1920. I would recommend that if its practical, you go to your local council library and try to confirm any of the information you know using their genealogy records. It's going to be difficult because of the use of Patterson as an alias, but you might find at least a name or two more to help pin down some details.
If you can't make it to the library, but have a credit card, you can search online:https://online.justice.vic.gov.au/bdm/home
hope some of this is helpful,