Batman vs Superman: Dawn of Justice came out ten whole years ago but I am still stuck on the "their moms were both named Martha!" thing and will be for the rest of my existence. So: here are all the super-heroes whose mothers are named Martha, as I encounter them.
Dickie Dean, Boy Inventor:
Dickie Dean, Boy Inventor's mother's name is Martha. (Silver Streak Comics 008, 1941)
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