Source: greenlawn.delaohio.com/greenlawn/greenlawndata/w.txt; and Ancestry.com—Wuerttemberg, Germany Emigration Index; and Wuerttemberg, Germany, Lutheran Baptisms, Marriages, and Burials, 1500-1985; and Germany, Select Marriages, 1558-1929; and www.findagrave.com.
His parents were Salomo Groezinger and Maria Magdalena Bauer.
The Wuerttemberg index reported that he had immigrated in 1881. The 1900 census reported that he immigrated with his family in 1880. He became a naturalized citizen.
In 1900 he and his wife and seven of their children lived in Columbus, Franklin County, Ohio.

Source: Ancestry.com—Germany, Select Births and Baptisms, 1558-1898; Wuerttemberg, Germany, Lutheran Baptisms, Marriages, and Burials, 1500-1985; and www.findagrave.com.
Her parents were Tobias Binder and Anna Friederike Meister.
As of 1900 Fredericka had had 10 children, nine of whom were living.