1920 Census shows that John was married to a Louisa b abt. 1867 in Germany, She came here in 1884. There were a Perter and Edna Scheible (Sckeible) listed as boarders. Edna's b. abt.1900. This could have been John and Louisa's daughter and her husband.This record was under the name Duersckinger, John
1930 Census records show John in Milwaukee, came to the United States from Germany in 1883. He would have been born in abt. 1861 anfd was a butcher. He was married to a Mary Born about 1888 in Wisconsin. Living with them were three stepsons. George P. Kling b. abt. 1907 in Wis., he worked in the telegraph office, Henry M, Kling, b abt. 1909 in Wisconsin, He worked in the meat packing house, and Edmund J. Kling, b. abt. 1913 in Wisc. They lived on 21st Street. In 1889 He was listed at the 858 21st, Milwaukee address as a buther and in 1890 listed at 850 21st., Milwaukee as a laborer.
Name Marriage Date County Volume Page
John M Duerschinger 31 May 1885 Milwaukee 17 0471
George lived 0n 19th Street in Milwaukee. He was born in Germany in 1857 and came here in 1874. HE was retired. His wife was Katie, born in 1851 in Wisconsin. In 1889 he was listed at 712 7th. in Milwaukee and his occupation was a tanner. In 1890 he was listed as a currier.
Name: Edna Duerschinger
Birth Date: 20 Sep 1900
Name: Louise Duerschinger
Birth Date: 19 Feb 1890
That is all I could dig up. Hope it helps.