I noticed from one of your other postings that some of her children were born in New London, New Hampshire.
I am currently trying to track down a Robert Coburn (b. 1780's probably Vermont).He lived in Springfield, NH (borders New London).His oldest daughter Betsey (b. 1809 in Wheelock VT) spent at least the last 10 years of her life living in the household of a John J. Sargent in New London (in his 1860 and 1870 census household).I am wondering if these two families might be related.
These Coburns have a bit of a unique skill marker.Betsey's brothers are all harness makers.