There were 2 Ernest Peters in the Marinette area 1 is from my family tree. He lived with his mother Cecelia's sister Elsie and her husband Grover Larson after his father George L. Peters died. I believe this Ernest Peters later married a cousin Elsie Walk Michaelis. The later link for obits is for this Elsie Michaelis Peters if you can get the 1992 obit for Ernest I think you will find this Ernest decended from Johan Ernest Peters who came from Germany with his brother Johan Martin Peters their father was Ernest Heinrich Peters and mother was Anna M Luther.
Hope this helps narrow them down to the correct Ernest Peters the other died in 1988.