Back again Lawrence.
I just did a quick check of my files and found I had given Margaret Fargher the wrong husband .It was Henry Skillicorn she married. Their son Henry b 1763, married Margaret Quayle. These were Jane's parents. She married your John Fargher.
I also have a Bessie Fargher marrying in 1750, a John Skillicorn b.c.1725.They had 3 children ,one ,Philip, married Ann Kerruish. must go hpe this helps. Jean