Looking for information on a Hassett family from Chicago/Oak Park area.

My grandfather: Leroy Hassett b. Cook County, IL lived in Berkeley, IL - his father was: Daniel Hassett b. IL m. Margaret Stuth.

Daniels father Thomas Hassett - lived in either chicago or Oak Park, born Ireland
married Mary Frawley - b. County Clare, d. proviso township, IL her father: Dennis

Have descendants, looking for any other info particularly county Ireland where Thomas Hassett is from.