This info was found in one of my genealogy books from the Bischmisheim area of Germany, and I am posting what was in the book in hopes it can be of help to those researching this surname.
WACK, Peter; Roman Catholic, worked as an ironworker in 1890 and a quarryman in 1892. ..b.1866, d.Feb 8, 1905 Bischmisheim,Germany. He was son of Jacob WACK and Gertrud RIEGEL of Wittersheim, Germany. ..Peter WACK married Charlotta TAUSEND Feb 8,1890 in Bischmisheim, Germany. She was b.16 March 1890 Bischmisheim, died 01 April 1944 Brebach, Germany.
Children: 1. Peter Friedrich Johann b.17 May 1892 Bischmisheim 2. Charlotte Louisa b.25 Sept 1893 Bischmisheim 3. Peter Heinrich b.26 Jan 1895 Bischmisheim 4. Maria b.27 Feb 1897 Bischmisheim 5. Sophia Louisa b.11 April 1898 Bischmisheim; m. 1920 in Bischmisheim to Valentin Jacob SCHWINDT 6. Charlotte b.14 Oct 1899 Bischmisheim
Hope this info helps those researching this line. ..marcy