Fiancées - Friends - Fiends of Strange Superhumans

Industrialists Simon Stagg and Herman Darling were about as amoral as one could get, which led to their continual conflict with superheroes in their lives. Simon founded Stagg Enterprises researching various cutting edge technologies, while Darling had other affluent business interests. While Stagg kept on the legal side, his business practices indicated underlying sinister motivations. Darling was more an overall grump and curmudgeon, especially around his daughter's dimwitted boyfriend. Stagg used the glowing Orb of Ra to eliminate his daughter Sapphire's boyfriend and his mercenary employee Rex Mason,  with the unexpected resulted being Mason's transformation into Metamorpho the Element Man of Earth-One. Darling soon discovered that Daisy's boyfriend Johnny Thunder of Earth-Two possessed an all-powerful living Thunderbolt who fulfilled his literal wishes.

Scientist Bruce Gordon found solace in the support system of his fiancée Mona Bennett and her father Professor Bennett, just as senator Thomas Wright found comfort in the extended family of his fiancée Wendy Foster and her father Doctor Foster. While Professor Bennet assisted Gordon in discovering the secrets of the shadow-casting black diamond which transformed Bruce into the evil Eclipso, Doctor Foster perhaps aided Thomas as Black Condor into refining his black light gun. Both sets of father-daughters aided the ladies' lads in their various adventures throughout the years, although Gordon's criminal career of alter ego and Wright's caped crusade as Black Condor meant that they never ended up settling down with their one-time true loves. 

Simon’s daughter Sapphire eventually got her wedding with Rex when her father finally gave them their blessing after years of enmity between the two men. This took place shortly after Rex joined Batman's Outsiders team and gained increased notoriety for himself. Herman's daughter Daisy eventually grew tired of Johnny antics and misadventures with his Thunderbolt servant, and eventually grew apart from him when Thunder adopted young Peachy Pet. Although Daisy attempted to become a surrogate older sister and prospective future mother-in-law for the girl, she soon made the decision to end her relationship with Johnny.

Eclipso's Earth-Two counterpart Doctor Charles "Doctor Midnight" McNider had as his romantic interest his nurse and personal assistant Myra Mason, with Myra's Earth-One counterpart as the personal assistant of Rick "Space Ranger" Starr in the future. The Earth-One Johnny Thunder never had time to have a romantic relationship, as he concentrated his time and energies into his criminal career leading his Lawless League gang (and twice usurping the control of the Thunderbolt from his doppelgänger). Black Condor's Earth-One counterpart Black Rock and Rex Mason's Earth-Two counterpart Joe Morgan were likewise preoccupied by their professional careers to find time for personal relationships with the opposite sex.

The most famous father-daughter duo on each Earth were undoubtedly Gotham City's Police Commissioners and their superheroine offspring. On Earth-One, this was James Gordon and his daughter Barbara "Batgirl" Gordon... and on Earth-Two, this was Bruce "Batman" Wayne and his daughter Helena "Huntress" Wayne. Unlike the aforementioned "damsels in distress" above, these two young women could easily take care of themselves and protect their cities from various threats.