In reply to:

My parents didn't give me the traditional Irish spelling of "Sean" as they were worried that people would pronounce it "Seen". I ended up with "Shaun" rather than "Shawn".

Exactly the same story as my brother Shaun. And I got Brenden rather than Brendan so a typo wouldn't change my gender.

My middle name is Irish as well, but last name is most definately square-headed Kraut.

Bren R.