I have your g grandfather Louis Dammann in my Kroekel database. His mother Mary (I have her as Marie Auguste) Kroekel was a sister of my great grandfather Charles August Hilmar Kroekel. The Kroekel family came from Braunschweig, Germany in 1865 and settled in Egg Harbor City, Atlantic County, NJ.
Parents of your Mary Auguste were Carl Friedrich Heinrich Kroekel (German form Krökel with umlaut) and Auguste Dorothea Caroline Hilgendaug.
Carl (aka Charles) Friedrich was b.Feb 2, 1824
Auguste Dorothea (she was second wife) was b. Oct 22, 1827
six children (three with first wife, she died abt 1852 in Braunschweig)
Oscar b. abt 1850
Ida b. abt 1851
Cacilie b. 1852
Charles August Hilmar b. Dec 7, 1854 (my great grandfather)
Clara b. Jan 13, 1861
Marie Auguste b. Feb 6, 1863, m. Karl/Charles Dammann on Jan 1, 1890 Egg Harbor City. He was b. Feb 18, 1853 and d. Jan 29, 1923.
Are you interested in exchanging family histories?