Carter Nichols (Earth-One)

Professor Carter Nichols first appeared in Earth-Two continuity in Batman #24 by Joseph Samachson and Dick Sprang. He first appeared in Earth-One continuity in World's Finest #79 by Edmond Hamilton and Dick Sprang.
This version of Carter Nichols, including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths event and later restored following the rebirth of the infinite Multiverse during the Dark Crisis of 2022–2023. Even though other versions of the character may have appeared, this information does not apply to those versions.

Trivia

In Superman's Girl Friend, Lois Lane #89, an "imaginary story" published during this era, Professor Nichols is said to have won a Nobel Prize.