Cornelius Hopp was born July 10, 1888 in Baldwin Township, St. Croix County, Wisconsin, and died August 28, 1967 in Baldwin Township, St. Croix County, Wisconsin.  He married Hilda Margaretha Sandfort April 22, 1913 in Baldwin, St. Croix County, Wisconsin.  She was born March 22, 1886 in Milwaukee, Milwaukee County, Wisconsin, and died August 02, 1977 in Baldwin, St. Croix County, Wisconsin. Children of Cornelius Hopp and Hilda Sandfort are:   Earl Cornelius Hopp, born PRIVATE.   Stanley Hopp, born August 24, 1922 in Baldwin Township, St. Croix County, Wisconsin; died February 28, 1923 in Baldwin Township, St. Croix County, Wisconsin.   Vernon Stanley Hopp, born PRIVATE.