Kerszk
Yes there was a migrant camp at Parkes - I understand there were a lot of displaced persons there, who subsequently stayed at Parkes for the rest of their lives.
The Marciniaks were on the Electoral Roll in 1958, so were probably naturalised before that - the National Archives of Australia (
www.naa.gov.au) may be able to help - not sure how far up their naturalisation records go.
1958 Electoral Roll, Calare, Parkes
Marciniak, Michal, 29 Federal street, labourer
Marciniak, Katarzyna, 29 Federal street, home duties
Was that Mical who died in 1981 (parents Stanislaw and Anna) but no place of registration given. Katarzyna died in 1985.
Good luck tracing them
Jean