Hi Nathaniel,
Another elusive rellie of yours? :2fun::2fun:
The closet i could find was this, probably a very big long shot but its all i could find.
South Australia death index
1941 641/4597 OLSON Charles Henry undefined Angaston
Leader (Angaston, SA : 1918 - 1954)
Thu 2 Oct 1941
Mr Charles Henry Olsen, 64, who died at Angaston on Friday after several days in hospital here, was not alone in his last hours, nor laid to rest without friends, although the fates had been against him and no relatives could be located. Mr E. T. Odgers and Mr P. R. Graetz made arrangements for the funeral on Saturday, and they were bearers with Messrs H. Doddridge and W. Stanitzke (the sexton). Rev. G. H. Bottrill conducted the service before this little gathering. Mr Olsen was born at Bendigo, Vic., and came here from Bundaleer early this year, living quietly by himself in a little shack on the Council property. His wife died many years ago, and there was no family; but a sister is believed to be living in Victoria. Mr Olsen had been a musician in his earlier years and participated in early band contests at Ballarat.
http://trove.nla.gov.au/newspaper/article/166382923
I know his surname was Harton but maybe he took the Olsen name since he would have been only a little fella when Olsen come on the scene.