Is Miss Casey a Real Helly?

i jon: It's possible that miss casey was like an earlier version of the a procedure in which she lost her other side entirely. I'm just wondering, what's the time line with that, ecause i, i, my initial thought is that irving has been there longer than mis casey. Although if they brought her back, i mean, i think in that theory, they would not view the person brought back as the real helly, right? In the same ori view any hally as the real hally.