His brother, Peter, married Pauline Reinhardt on 27 May 1884 at Lower ??? Presbyterian Church. The original of the marriage registration is available for viewing at familysearch.org and perhaps you are more familiar with what the name of the church would be -- this would confirm the names of the parents.
His sister, Elizabeth, married William Marbach on 26 April 1886 by W. Bartling, a minister in the Evangelical Lutheran Church, 185 Fremont Street, Chicago.