Smitty and his childhood friend Rojek grew up in Metropolis's Suicide Slum, where they developed criminal tendencies fairly early on. Lacking in brains (Smitty had more than Rojek, but not by much) they ended up as professional henchmen working for various super villains. While working for Metallo, they fought Blue Devil in one of his earliest adventures. Later, Smitty and Rojek attempted to use the aliens Jorj and Lehni to rob a casino but were again thwarted by Blue Devil. Following Metallo's defeat, Smitty decided to break into his headquarters some weeks later and, upon discovering Metallo's former super powered henchman Shockwave, attempted to use him himself, only to end up working for Shockwave instead and launching an ill-fated attack on Blue Devil.
- In Blue Devil #6, Rojek is repeatedly misidentified as Smitty.
- Although this character was originally introduced during DC's Earth-One 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 should be considered apocryphal.
- 6 Appearances of Henry P. Smithers (New Earth)
- 3 Images featuring Henry P. Smithers (New Earth)
- Quotations by or about Henry P. Smithers (New Earth)
- Character Gallery: Henry P. Smithers (New Earth)