
So like most superheroes, Kara goes by multiple names! So here's a quick rundown on what she uses.
Supergirl: What she will be introducing herself as for the most part. Especially because she will be in her costume almost always when she's out and about. Pretty self-explanatory, feel free to recognize her.
Kara Zor-El: Her real name. Unlike most caped folk, she won't mind much if people find out what her real name is/will more willingly tell people it. This is because unlike the others, there's... really not much connected to this name besides Krypton and other superheroes. It isn't a secret identity because at first Kara never really bothered to lead a double life.
Linda Lang: However, is a secret identity. Linda is the niece of Lana Lang, who is more commonly known as Superman's girlfriend before Lois. Kara will most likely NOT be using this name in Camp unless something comes up and forces her to. So on that note, people finding out that Linda = Supergirl would be very do not want unless discussed first if she does end up using it at some point.