IGI has:

CAISTILL, John s/o John CAISTILL & Jane GARRETT chr 08 Jun 1783, Lezayre, IOM
They have several other offspring.
(Caistill is a form of Castle)

Jane COWLE Snr possibly:

COWLE, Jane d/o Charles COWLE & Jane TEAR chr 17 Mar 1793, Ramsey, IOM
Maughold MIs have
Charles COWLE d. 12 Aug 1834 aged 75 yrs
Jane COWLE alias TEARE d. 17 Sep 1846 aged 78 yrs

Constance Radcliffe's "Ramsey 1600-1800" states Pg 125 "...there were three Charles COWLEs in Ramsey, two of them were mariners who perished at sea...while Charles COWLE, glover, who sold land for the first schoolhouse, belonged to Andreas."