It looks like it has been picking up for girls since like 2008.
https://www.behindthename.com/top/beyond.php?name=Harlan
TBH it reminded me of this article I posted on my facebook months ago-- KFC asked parents to name their children born on September 9 'Harland' after the Colonel and one of them won $11,000 (
https://people.com/food/kfc-colonel-sanders-name-contest-baby-girl/). Silly.
The Har- sound is ugly to me, so I don't like it.
Isadora Evander Larkin
Pax Symphorian Grey
www.behindthename.com/pnl/59411