Since you have month and year of births for family, I assume you have seen the 1900 census??Did you notice 4 pages away Israel Frank, 64, b PA, PA, PA -- "brickmason" with wife, daughter and granddaughter.
By the way, birth location for William's parents are blank and his shows Indian "T", which would mean Indian Territory.
1880 census Waynesville, DeWitt, IL pg 475 B [spelling as shown on familysearch site abstract]:
Category: Name;Relationship to head of household; Marital Status; Gender; Race; Age; Birthplace; Occupation; Father's Birthplace; Mother's Birthplace.