Hi Donna

Ref John QUINE Ballamoda & and Jane CALLOW married on 14 Jul 1822 in Braddan

Reference your Fourth generation as William Quine & Margaret Kelly [parents of John who married Jane Callow]

I had his parents as:
John Quine b 19 Oct 1760 alive in 1841
married
?
children
John b 1788

1841 census Ballamoddha
John Quine Sen 80 b c1761
John Quine Jun. 53 b c1788 Onchan
Jane Quine 48
Ann Quine 17
Dinah Quine 16
Elenor Quine 12
John Quine 14 b c1827
Thomas Quine 10
William Quine 8

From this line:
Thos Quine b 1718/22 d 14 April 1803
married 9 Oct. 1744 Braddan
Margaret Creer b June 3 1722 (d1777)
children
John Quine b 19 Oct 1760 d after 1841 (W) Probably... lived in a croft in Ballamoddha (NC)
Ballamodha is in Treen of Balla Christry, East Baldwin Creers on this land: Margaret Creer's parents? ]

(W) =mentioned in Mothers Will of 1777, (Robert signed as a witness) Margaret Creer daughter of William Creer and Catherine Taggart of Ballamodda
Family at Arderry until Thomas of 1718 sold the land to another Quine in 1761

Maybe I am wrong... how did you arrive at William as father of John of Ballamoddha born c1788?