Not sure if this is of any help butIfound 2 Louisa's in our tree:
Louisa (Von Behren) Horstmann (10/16/1835 to 8/16/1907) who married a Ernest Horstmann
they had one child also Named Louisa. (3/23/1856 to 4/9/1920)
The first Louisaborn of 1835later remarried Henry Becker(1/24/1830to 7/23/1914) and hadeight additional children (Charles, Amelia, Anna, Fredericka,Mary,Lena,Minnie,and Lydia)
The second Louisa (Horstmann) Schroer born of 1856 married HermanSchroer (3/23/1852- 12/16/1920) and hadTen childrenbetween 1880 -1898 ... Fritz, John Henry, Louis F., Otto, August, Lena Louise, Herman Jr., Fredricka Anna, Carl Fredrick,and Amelia Wilhelmina Anna
I can help you wityh these trees,If you find anything regarding these Louisa's I would appreciate those leads.