Hi, You know that John and Katherine FILKOWSKI and family arrived in Canada aprox 1928/29
John FILKOWSKI - may have made application for Naturalization - This is available.
May show - Name, address - date and place of birth - names of parents including maiden name of mother - etc - also will show - date and port of departure - date and port of arrival
name of passenger ship.
Search Passenger list - perhaps there are other family members
REGISTRATION of DEATH for John FILKOWSKI - Katherine FILKOWSKI
Depending on knowledge of Informant - May show names of parents - including maiden names of the mothers. Place of birth of the parents etc
Depending on family - Obituary may show some family history.