Hello Joy. Are you researching the Callin name? Brenda and I (and a few others out there) have been 'filling out' the tree - the descendants of Robert Callin and Eleanor Cowin for the last year (on and off). Robert & Eleanor lived at the Pholley, (Kerrowdhoo) Doarlish Ard above Foxdale and it stayed 'in the family' into the 20th century.
They had 12 children (9 'survived') and I am descended from one of their sons, Richard Callin. It is his younger brother John who married Ann Fargher and their daughter, Mary Callin (one of 5) who married Peter Caley.
We have a lot of information around this period but not necessarily an exact answer to your specific question.
Can we discuss direct? My email is paul@conrhenny.co.uk.
Paul