http://www.obenlandfamily.com/getperson.php?personID=I4394&tree=00911 has Maria Catharina Obenland born in Kleinaspach, Württemberg. Württemberg was protestant, therefore, I would try my luck to get church book entries from the Evangelisches Pfarramt Kleinaspach, Allmersbacher Str. 41, 71546 Aspach, email: Pfarramt.Kleinaspach@elk-wue.de
They may have the relevant church books or may know where they are held.