Sophie Margareta Frederike Koch
- Born: 11 Sep 1855, Schleswig-Holstein, Germany
- Marriage (1): William Johannes Christian Schaff
- Died: 23 Jun 1937, Eldridge, Scott County, Iowa, United States at age 81
- Buried: Jun 1937, Pine Hill Cemetery, Davenport, Scott County, Iowa, United States
 Find A Grave ID: 154008717
Sophie married William Johannes Christian Schaff. (William Johannes Christian Schaff was born on 3 May 1857 in Tyskland, died on 3 Dec 1921 in Princeton, Scott County, Iowa, United States and was buried in Dec 1921 in Pine Hill Cemetery, Davenport, Scott County, Iowa, United States.)
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