Erika, I can't match the dates and names you have but your post intrigued me nevertheless.
I too am hunting for info on my James Logan descendant, who was born in PA (I'm guessing around 1770-80 period) and later migrated to Wilmington, DE. I've tracked my James Logan to the 1820 1830 census but lost him after that time. My James was said to have laid the first waterpipes in the city of Wilmington in 1827 (according to my g-g-grandmother's obituary and a couple of local history books.)
Strangely enough, James daughter (my g-g-grandmother), Mary Jane Logan was born in PA on 6 Sept 1826 at a time I thought this Logan family would have been in DE. I think they moved back and forth between Wilmington and PA and suspect nearby Chester Co. or Delaware Co. as likely sources of their immigration/emmigration.
My James Logan was married Jane Logan (maiden name unknown.) She was also born in PA in the late 1700's but I have no additional info on her.
Have you located your James Logan (b. 1760) on any census? What documentation do you have on him? It's possible James could have married Isabelle Reid AND, later (after divorce of death), Jane Logan.
Please contact me. I'm interested to hear what you have.