The Schroeder ancestry came from Prussia to Canada in the 1800's and it was at Blumenthal, Manitoba Canada, that my husbands father was born in 1900.
It might help you to contact :
Mr. Redekopp is very obliging and can probably direct you where to research for ancestry.
I had difficulty this a.m. trying to respond to your message so thought I'd try again, and voila ! it worked.
My e-mail is firstname.lastname@example.org
Blumenthal and Altona are both small centres in the province of Manitoba and that is in the area where the Bergthal Mennonites came to from Prussia/Russia.
We are in British Columbia , on the west coast of Canada.