Children:
- Albert R. John Onasch was born 18 Oct 1881, East Troy, Walworth, Wisconsin; died 18 Aug 1956, Town of Summit, Waukesha, Wisconsin.
- Oscar Ludwig Onasch was born 02 Mar 1883, Eagleville, Walworth County, Wisconsin, USA; died 25 Oct 1942, Jefferson, Wisconsin, USA.
- Bertha E. Onasch was born 11 Aug 1884, Wisconsin; died 25 Jan 1963, Ocon, Wisconsin.
- 1. Amanda Onasch - Grunewald was born 12 Apr 1886, Lafayette WA, Wisconsin; died 12 Jun 1968.
- Olga (Hulga) A (Onasch) Zuehlke was born 9 December 1887, Walworth County, Wisconsin, United States of America; died 30 January 1946, Pittsville, Wood County, Wisconsin, United States of America; was buried , Pittsville, Wood County, Wisconsin, United States of America.
- Emma Onasch was born 25 Feb 1890, Wisconsin; died 22 Aug 1960, Ocon, Wisconsin.
- Clara (Onasch) Riddle was born 1 June 1892, La Fayette, WI; died 17 June 1942.
- Ernest Onasch was born 04 Mar 1894, Walworth, Wisconsin, USA; died 31 Dec 1944; was buried , Oconomowoc, Wisconsin, United States.
- Ida A Onasch was born 25 May 1899, Wisconsin, USA; died 6 Aug 1984, Clearwater, Pinellas, Florida, United States.
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