It's not worth searching internationally. Have you forgotten that Europe had 2 WW's. Many cities were erased along with their records.Many cities were suddenly in an new country and their names were change.Also, any record comming from Europe would net be in English.
You wrote - "talked about his father and uncle working in the lumber camps of Michigan".WHO are these ppl??Need 1st & last names + DOB's + birthplaces.
Need DOB + birthplace for -Walter Cassidy. WHO did he marry???Need her 1st name + DOB + birthplace.