Lots of questions. Why not go to my website & look at the Crowe tree www.manxroots.com
You will see my e-mail address on the Quine page & I can tell you more about the multifarious descendants of John & Maria Corjeag.
For general interest, Ann and Wm Crowe had 16 surviving children, including 7 sons (6 left issue).
The tree which I drew up & was dieplayed had material from your uncle Sid whom I knew.