I have a book on the Bischmisheim area of Germany and the families living their before 1900. In it, I found reference to several members of this ACKERMANN family. I will post the info that was in the book in case it helps someone with their research.
ACKERMANN, Margareta from Herrensohr,Germany b.08 April 1876 She was daughter of Friedrich ACKERMANN and Carolina ERDMINGER, both from Herrensohr. Margareta married Carl LUDT in Feb 1900 in Dudweiler,Germany Carl LUDT was born 29 July 1876 in Bischmisheim,Germany. His occupation was a day laborer, an ironworker.
Johann Nicolaus ACKERMANN m. Susanna Catherina MAURER on 02 June 1738 in St.Arnual,Germany
Catherina ACKERMANN of Volklingen,Germany married Peter LANG abt 1860.
...Hope this info can help point someone in the right direction in their research. Marcy