Superman, Juara Kaum Tertindas (1938)
X-Men # 49 - Siapa Dares Defy The Demi-Men?
Metropolis
Serval Industries, Virginia; sebelumnya X-Factor Investigasi Markas, Starjammer; Xavier Institute for Higher Learning, Salem Pusat, Westchester County, New York; Genosha; X-Factor HQ, Washington DC, Maryland; Mutan Research Center, Muir Pulau;