There is a conflict here. My go-to website for this project (http://www.babynames.com/) is letting me down on this one. So, I will reference another website which I used when I posted the "odd" girl's names back in June (http://www.thinkbabynames.com/).
Harper- English- harp player/ harpist (Hey, this one they agree on. I could have figured this one out!)
Arlen- It is either German- from Erland^, or Gaelic- pledge, oath*. (Being more Irish than German, I would chose the Gaelic.)
Orlando- Italian- famous land^ or Spanish- variant of Roland (German)- renowned land*
Percy- French- pierce valley^ or Latin/French- penetrate the hedge* (I know! Apparently "penetrate the hedge" means you are an effective hunter in Old French. Being that Percy is derived from Perseus, the Greek hero who beheaded Medusa, it might be better to just say it means "effective hunter".)
|The constellation Orion|