Well, now that I have found Edward's Merchant Seamen's record, I was able to find a birth certificate.

Showed parents Thomas Cooney & Joanna Connors.
Next I searched Thomas Cooney & Joanna Connor for other children. William & Thomas came up in 1828 and 1833 - and a marriage certificate for 1825 for Thomas & Joanne. (Edward was born in 1819).
When I did a search using Thomas Cooney & Joanna (no last name) - four more children came up who would have been older than Edward, but born much closer to him than the younger two.
1) Were they two different families?
2) There was a family note 'orphaned age 9' that seemed to refer to his son, but considering it for Edward as well
3) How did a young boy from Clonmel get trained to become a ship's carpenter by age 16?
And as a beginner - should I be posting this somewhere else? Clonmel brings up the whole Waterford or Tipperary issue as well so not even sure which county to post in. Still learning.
Thanks for any help and direction. ~ Ann