Why do the most common forenames associated with a particular surname mainly show masculine names?
Most of our names data comes from telephone directories, and unfortunately since most telephone directories are still registered under a male forename, female forenames are hence unrepresented in our database. However, this is not the case for the countries in which we have used electrol registers. Both telephone directories and electrol registers present a further bias, since they only cover adult names. As a result the latest fashion in forenaming practices are not necessarily covered by our database.