History of character is unknown.
- Although this character was originally introduced during DC's Earth-Two era of publication, their existence following the events of the 1985-86 limited series Crisis on Infinite Earths remains intact. However, some elements of the character's Pre-Crisis history may have been altered or removed for Post-Crisis New Earth continuity, and no longer apply.
- 2 Appearances of Ralph Jackson (New Earth)
- 2 Images featuring Ralph Jackson (New Earth)
- 1 Quotations by or about Ralph Jackson (New Earth)
- Character Gallery: Ralph Jackson (New Earth)