For what it is worth:
The 4 presumably youngest children of Thomas Fargher and Ann Vondy as recorded in Lonan are:
1) Mary Fargher who was christened Dec. 1718, Lonan, died the 31st 1799 Lonan and left a will.
She married William Callow beg (circa 1716-1739) a crofter at Croit Roie, Lonan 24th Feb. 1738,
Lonan. They had 10 children born in Lonan.
2) Elizabeth Fargher was christened 28th Oct. 1721 father Thomas Fargher miln. A Bessy Fargher
married John Skillicorn 19th May 1750, Lonan.
3) Margaret Fargher who was christened 10th Oct. 1724, Lonan, received a dowery on the death of her
mother in 1754. father Thomas Fargher miln. A Peggy Fargher married James Moore 2nd April,
1755, Lonan.
4) Alice Fargher who was christened 4th July 1727 Lonan, received a dowery on the death of her
mother in 1754. She married William Quark 12th Feb. 1757, Lonan.

So John Fargher could have been born between 1702-1718 and there is room for another half dozen siblings.