I prefer
Breann to Cathlene. I had a friend in middle school named
Breanne and I always thought her name was unique. :) I also think that
Breann Byrum sounds fine, and don't think it matters that they both start with B's, it actually makes it sound quite nice to me. :) It would sound bad if the first name ended in a B and last name started with a B.
Mom to
Joanna Catherine