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Köster Genealogy

The Köster Genealogy web site presents the history and genealogy of a Köster family that emigrated from what is now Germany as early as the 1840s. We know family members emigrated in the 1860s and 1880s and settled in the states of Illinois and Iowa. After arriving in America, several of our Köster ancestors changed the spelling of their surname. Köster, Koster and Koester surnames are found on the web site.

The records in the “Kirchenbüch” for Berge begin in 1690. However, many years of records are missing or incomplete. The earliest Köster in the records is Johannes Köster, born say 1650 and married to Catharina Sieffers in about 1679. This couple had at least nine children born between 1679 and 1694. They are likely our ancestors, but we are not able to confirm a link to our known ancestors. For the web page, we are reporting the early Köster information and not making a connection to our family. Our research is collected under Possible Köster Ancestors in the History section.

The oldest proven ancestors of this branch of the Köster line are Johan Henrich Köster, born in about 1712, and Agnes Kramer, born about 1720, who lived in the Kingdom of Hanover. They had at least five children: Anna Alheid Elsabein Köster, born in 1742, Johan Herman Köster, born in 1749, Johan Henrich Köster, born in about 1750, Johan Theodor (Dirk) Köster, born in 1752 and Johan Hermann Köster, born in 1764. We believe son Johan Henrich married Catharina Wobbe, but we continue to search for information about them. We believe the second Johan Hermann son married twice, first to Phenemia Adelheid Krümpelman and second to Phenemia Angelbecke. 

Herman Gerhard Köster, son of Johan Hermann Köster and Phenemia Angelbecke, was born July 3, 1783 in Dalvers bei Berge, Kreis Bersenbrück. We believe Herman Gerhard Köster married three times. He married Anna Catharine Maria Marcus on October 12, 1811. They had at least two children, Herman Bernhard, born January 15, 1812 and Johan Gerd, born March 20, 1815. We believe these oldest sons emigrated to America, perhaps though New Orleans, arriving about 1844.

After the death of his first wife, Herman Gerhard married Maria Catharina Kreiling and they had at least two children, Hermann Henrich, born March 9, 1817 and Catharina Elisabeth, born 1820. Both of these children emigrated to America in the 1860's. We believe Herman Gerhard's second wife also died and he married a third time, to Maria Catharina Elisabeth von der Haar. We know their three children were born at Dalvers bei Berge, in what is now Niedersachsen.

Two of Herman Gerhard and Maria Catharine Elisabeth von der Haar's grandchildren, Wilhelm Bernard "William" Köster (1853 - 1933) and Anna Köster (1863 - 1933) emigrated to America in the 1880's where they married and raised families. William changed the spelling of his name to Koester and Anna changed to her married name – Nieland.