I learned at the archives main library that the use of Cain in my John's middle name was due to concern of losing family last name Caine.
So look for last names as possible middle names in your family line.
Often DOBs are not recorded rather baptisms often 2 for the same child, due to prevailing religious beliefs of quick Christening before baby died, and a later more formal Christening sometimes as much as a year between these dates.
A comprehensive guide to IOM famillies and their professions is a book by Constance Radcliffe.
Lastly I do have lists of IOM links to various journals that include alsorts of information about IOM and its inhabitants, so feel free to message me.
Cazz
