- Jimmy Olsen originally appeared in Earth-Two continuity in Action Comics #6 by Jerry Siegel and Joe Shuster. He was introduced in Earth-149 continuity in Superman #149 by Jerry Siegel and Curt Swan.
- This version of Jimmy Olsen, 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 limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.
- 3 Appearances of James Olsen (Earth-149)
- 2 Images featuring James Olsen (Earth-149)
- Quotations by or about James Olsen (Earth-149)
- Character Gallery: James Olsen (Earth-149)
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