The Braas branch of my family didn't come to america until after 1852.

Hans Joachim Braas
B: 3/16/1767 Place: Bohnert, Schleswig Holstein region of Germany
D: 3/13/1830 Place: Nottfeld Germany
married To Anna M Lorenzen
Anna M Lorenzen
B: 1/12/1764 Place: Suterbrarup
D: 7/2/1831 Place: Nottfeld
Children
Hinrich Christian Braas
B:6/28/1803 Place: Nottfeld
D: 12/4/1873 Place: Nottfeld
Married to
Maria M Grewe
B: 2/9/2010 Place Goltoft
D: 7/27/1869 Place Nottfeld
Children
Peter Wilhelm Braas
B: 7/28/1852 Nottfeld Germany
D: 1932 San Francisco, CA USA
Married
Catharina Kraul better known as Dora
B: Nov 1861 Germany
D: San Francisco USA
Children

I don't know if who you are looking for is a sibling or daughter to Hans. In the early 1800's my family was still in Germany.
Good luck,
Lisa