1920 US Census has:
254 Adam Heidenreich, Kankakee, IL Birth abt 1860, From Sachsen (Kgr. /Land in Bundesrepublik) / Saxony (Kingdom/State); Deutschland. well driller.

255 Emma abt 1861, born in IL, both parents born in Germany.
256 Charles abt 1900, apprentice Electrical
257 Albert abt 1903, apprentice Machinist