Frederich Borchard OLBERMANN born approx. 1801. Naturalization papers, dated Oct. 24, 1854, and 1860 census records reveal his country of origin as Russia, possibly among Germans who migrated from Germany to Russia. He married Katrina MIDDELKAMP DIRSING, born July 1820 Basbergen, Hanover, Germany. Frederick owned a Blacksmith Shop at 146 E. 46th Street in New York City. They had one son, Henry Bernhardt OLBERMANN, born July 25, 1854, who married Mary Ann Bridget HAMMANN and lived in the Bronx, NY.
Would like to contact anyone researching the OLBERMANN/MIDDELKAMP/DIRSING/and HAMMANN surnames.