"Anna Maria" is a very common double name in western germany and, thus, could be written Annamaria more appropriately. Anyway, spelling Annamaria ist absolutely uncommon. A widespread pronounciation for Anna Maria is the highly contracted "Ami", similar to french friend "ami", but with stress on the "A".
Personal recollection of events witnessed by Michael Malburg as remembered 30 Jul 2017.
Kimmling, Bernd. Die Einwohner von Malborn-Thiergarten mit den zugehörigen Mühlen und Höfen und dem Weiler Röderbach 1708 - 1908. Malborn, Germay. Entries #447.a (child) and #1500 (parent).
It may be possible to confirm family relationships with Anna Maria by comparing test results with other carriers of her mitochondrial DNA.
Mitochondrial DNA test-takers in the direct maternal line: