I collect all surnames related to my lines and try to find how they connect. I haven't been able to find how or if Rachel KIRK is connected yet. In my collect surnames I have that Rachel KIRK was a daughter of Isaac KIRK & Rachel UNKNOWN. John SUPLER JR was a son of John SUPLER Sr. & Susannah (GRAY). Isaac KIRK was a son of Joseph KIRK & Anne(HOOD). Did your KIRK go to Fayette or Montgomery Co, Illinois? My paternal great-grandfather Henry BESS/BEST had a sister Ruth BESS/BEST b. 1861 Ohio d. 1925 Montgomery Co, IL married Sebastian Jefferson P. KIRK b. 1859 Fayette Co, IL d. 1930 Montgomery Co, IL. I hope this helps somehow.