First up: Justice Society of America
The Justice Society of America, or JSA, is a DC Comics superhero group, the first team of superheroes in comic book history. Conceived by editor Sheldon Mayer and writer Gardner Fox, the JSA first appeared in All Star Comics #3 (Winter 1940).
This pic is of the last surviving original members: Hawkman, The Flash, Green Lantern and Wildcat.