If you will put "Short History of Abraham Hunsaker" into a search engine, you will find more details about the IL Hunsakers. (Some of the IL Hunsakers went on to Knox Co, MO.)
My son's ancestor, according to the LDS,was Mary Hunsaker who was born in 1795 in Springhill, Fayette Co, Pa and whomarried Louis (Lewis) J. Simpson of Muhlenberg, KY in 1816 in Springhill. (She died in 1831, probably in IL.) If I read the bottom of the second page of Abraham's history correctly, she was the daughter of Jacob Hunsaker and Polly Luce.