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Superman was created by writer Jerry Siegel and artist Joe Shuster.

 Action Comics #1 (June 1938)

 Batman was created by artist Bob Kane and writer Bill Finger

Detective Comics #27 (May 1939)

Created by writer Bill Finger and artist Martin Nodell 

All-American Comics #16 (July 1940)

 Conceived by editor Sheldon Mayer and writer Gardner Fox

All Star Comics #3 (Winter 1940)

 Created by A William Moulton Marston.

 All Star Comics #8 in December 1941

Created by writers Robert Kanigher and John Broome and penciler Carmine Infantino

Showcase #4 (Oct. 1956)

 Writer Gardner Fox and artist Mike Sekowsky

 The Brave and the Bold #28 (February/March 1960)