I have next to nothing on the Gutherie family.I do have Polly Teagle's father as James Gutherie b. 1756 and d. c1838 in Union Co., SC.This information comes from "The Teagle Family 'From Then Til Now'" complied by Winton Teagle and Terrence Lindemer in 1992. The book doesn't have a lot of information just names taken from a Union Co. deed dated 1837 which lists James Gutherie's children.You might contact Winton Teagle at SlowWinton@aol.com.Perhaps he has collected more information since he published his Teagle book.
Sorry I couldn't be of more help. I'll keep your name and email address - if I ever find anything substantial I'll pass it along.