1. | Hackmann, Gerhard Friedrich was born 1821 (son of Hackmann, Johann Friedrich and Tobrocke, Anna Marie); died 1889. Gerhard married Steinkamp, Maria Engel 17 Jun 1841, Missouri, USA. Maria was born 1820; died 1900. [Group Sheet]
Children:
- Hackmann, Friedrich Wilhelm was born 18 Dec 1841, Missouri, USA; died Yes, date unknown.
- Hackmann, Johann Heinrich was born 5 Sep 1843, Warren County, Missouri, USA; died 11 May 1920, New Boston, Warren County, Missouri, USA; was buried , Holstein, Warren County, Missouri, USA.
- Hackmann, Adolph Samuel was born 7 May 1861, Warren County, Missouri, USA; died Yes, date unknown.
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