It would appear that the mother of my great grandfather, Cordt Bruns (born in Waffensen - now part of Rotenburg(Wumme) - 1839) was Anna Maria Bruns. However, that was her married name (her maiden name being Bohling). Nevertheless, it is quite possible that she had a daughter named after her. I have so far only discovered four brothers but it is quite possible that they had sisters.
Andrew Brons