"Shows Miles death in the Atlantic Ocean."

Where? Are you seeing this on a tree or an actual record?

For info about researching deaths at sea, see

http://yourarchives.nationalarchives.gov.uk/index.php?title=...

and listen to the podcast at
http://www.nationalarchives.gov.uk/podcasts/bmd-at-sea.htm

If your concern is that there was another Miles HODGSON, posting on the Northumberland message board may bring you some answers.

Good luck!