Hi, You know that the marriage took place in Winnipeg Manitoba.
Do you know if the family settled/ stayed in Manitoba?
Do you know if Dmytro/Metro,Dmetro STASIUK and Paulina STASIUK nee MUDRYK - are still living ?
If Not: Obituaries - may show names and locations of other family members / children etc.
Is your Grandmother: Katie LADANCHUK nee MUDRYK - still living ? If Not - Her obituary may mention sister Paulina STASIUK - nieces nephews etc.