William Frederick Mertz & Margaretha Wolgast 
They had a daughter named Ella Wilhelmina.
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Children
Ella Wilhelmina Mertz
Ella Wilhelmina was born on February 24th, 1876 in Belnap Township, Michigan. She died at the age of 62 on May 20th, 1938. She was buried in At White Chappel Cemetary in Troy, Michigan G2 Marker 5581 grave 1.