Could someone who lives in the area please let me know what the county seat of Mercer County is? And is there a library or historical society there? If so, what is the address, phone number, hours of operation, and days it is open? I hope to make a trip through there sometime in mid-October and would very much like to visit the library or genealogical society, as my father's parents were from that area. Thank you very much. Sincerely, Linda Pierce Moore