You might think of Harper as the hottest name of the last decade, jumping from obscurity to the Top 10, where it remained until last year.

Lewis is the best spelling to choose if you want this pronounced with the S. It was a Top 100 name in the US from 1880 to 1930, reaching Number 30 in 1880 and while it has declined in use, it has remained in the Top 1000 since stats began.

Clancy, one of the original crossover Irish surname names, is as energetic and appealing as ever — full of moxie, more distinctive than Casey, and also one of the less obvious of the red-headed names.

Franz is the German equivalent to Francis, and you'll be hard-pressed to find a Franz outside of countries with Germanic origins. In America the name is often associated with celebrated author Franz Kafka, who was born in Prague.

Most closely associated with famed English novelist George Orwell (whose real name was Eric Arthur Blair), this English surname is now occasionally sported as a literary first name. Given its meaning, Orwell could also be used by those looking for a more subtle alternative to River.