"Illinois, Cook County Deaths, 1878-1994," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2MV-FLZ3 : 18 March 2018), Sadie Van Tholen, 04 Oct 1990; citing Lagrange, Cook, Illinois, United States, source reference , record number , Cook County Courthouse, Chicago; FHL microfilm .