I have information but if differs somewhat from yours. My husband is also a descendant of Isaac Franklin.
Isaac b ? Burke Cty, NC m. Hannah taylor b 1820-22 d. aft. 1870
Son of Samuel b 1780 Burke Cty NC d 1857 Linville Falls, Burke County (now Avery Cty), NC m. Dorcas Barbara Burns Aug. 6, 1800 Michlenburg Cty. She born 1774 in Burke Cty and d. 1857 in Linville Falls.
son of John b. June 2, 1727 Boston, Suffolk Cty, MA d. Sept. 30, 1818 Connelly Springs, Burke Cty, NC m. Phebe Parker d/o Nathaniel b. 1731, d 1821 Connelly Springs, NC. They probably married in Washington Cty VA in 1758. John was s/o John Sr and he the son of Josiah Franklin father of the statesman, Benjamin Franklin. This is all info I have gathered but take it all with grain of salt - Which of Isaac's children do you descend from?