I too have Farghers from Lonan in my family tree. To share the information I have, I have listed that part of the tree below which I think is correct. If anyone else can help me with any connections or revisions, I would be most grateful.

Thomas Fargher b 1715 in Lonan IOM, married Margaret Quark (b abt 1719) on 29 Jan 1739/40 in Lonan. Three Children (that I have found)
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Thomas b 1740

Elinor b 1756 (Married Philip Moore in 1772 in Lonan - Parents of Philip = Philip Moore b 1712 in Bradden and Ellinor Fargher b 24/1/1718/19 M 17/2/1743/44 in Lonan. Philip's father was also Philip Moore and Ellinor's father was William Fargher.)

John Fargher b abt 1750 in Lonan.
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John's son was Philip Fargher b 1771 in Lonan. He married Elizabeth Kewley (b 9/4/1769 in Lonan) on 9/4/96 in Lonan.

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Philip and Elizabeth had at least two children being

John Fargher b 29/11/1807 in Lonan (his son was Edward Fargher b 1856 in Lonan (occ Lead miner)

William Fargher b 1798 in Lonan (occ farmer).

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William had at least three children being

Philip Fargher b 1818 in Lonan

Margaret Fargher b 1827 in Lonan M John Thomas Skillicorn (b 1823)at Lonan Church in 1843. His parents were John Skillicorn and Jane Davis.

Elizabeth Fargher b 1812 in Lonan M John Quine in Lonan on 11/8/1832. (This is my own family line)

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From there my family tree developed through the Quines, into the Sayles, then the Clarey's before they get to the Sharrocks. I am happy to share anything I have if it will assist anyone further.

Regards,

John Sharrock.