Alda, drunk, to Stevie: Stevie has no idea I'm in love with her.
Stevie: You're in love with me?
Alda: Oh! Sorry!
Alda, to Helena: Stevie has no idea I'm in love with her.

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Alda, drunk, to Stevie: Stevie has no idea I'm in love with her.
Stevie: You're in love with me?
Alda: Oh! Sorry!
Alda, to Helena: Stevie has no idea I'm in love with her.
Earth 489: Alda & Irwin Hall
Through the many life times Khufu and Chay-Era have lived, their union has brought about many generations of offspring. The latest of these Hawk children are Alda and Irwin Hall. Born from their latest incarnations, Carter Hall and Shiera Saunders, the twins were orphaned at a young age by Khufu and Chay-Era’s eternal murderer, Hath-Set. Before he could turn his attention to the young children, however, they were rescued by their uncle and aunt, Hank Hall and Dawn Granger. With no other family to go to, Hank and Dawn adopted the two children, raising them alongside their daughter Esme.
Although they survived the encounter, the trauma at having witnessed their parents death’s haunted them, and they were plagued by nightmares. One night, during such a nightmare, they were visited by Dream of the Endless, who claimed to have been, in a previous life, their nephew Daniel. His father had been the son of Khufu and Chay-Era’s reincarnations from the Golden Age of Heroes, the Thangarians Katar Hol and Shayera Thal, the original Hawkman and Hawkwoman. Having recognized their plight, as well as his connection to them, Dream offered to be an adviser to them on how to conquer their nightmares. The siblings accepted the offer, and were tasked with breaking the curse that had plagued their parents (and Dream’s grandparents) for thousands of years. With a goal in mind, equal in both reward and difficulty, Alda and Irwin located their parents old gear and suited up as the new Hawkgirl and Hawkman. They would later join the third iteration of the Justice Society, led by Helena Wayne.
Notes
Hawkman lore is… confusing. Reconciling everything into something coherent took some time, and even then I kind of cheated by just no addressing some things. Ultimately, Hawkman and Hawkgirl aren't too important to the general lore of this universe, so I can get away with it.
Carter Hall's familial connection to Hank (and Don) Hall is admittedly stolen from Earth 27, another (much more popular) fanmade DC continuity created by Roy Westerman. While I do have some issues with the continuity as a whole (which I won't get into bc I don't want to bash the dude's work), there are some individual ideas that I liked, and Carter's relationship to the Hall family is one of those. Also taken from Earth 27 is the Hall family being black. I didn't mention it in the bio because it didn't seem too important to the lore, but I felt it should be stated.
Alda Hall is based on Alda Hall-Saunders from the Arrowverse comic "The (Ex) Legends of Tomorrow". In it, Alda was just an adorable child, but it was mentioned that in a possible future, she'd be a hero known as Hawkwoman, so I decided to go with that idea. As for Irwin, he's mostly an original character. I decided to give Alda a brother (whose name is taken from Hawk and Dove's dad, and therefore Carter's dad in 489) after discovering a character named Janet Hall, who's the granddaughter of Carter Hall from a story called "Batman & Superman: Generations". Janet is also the granddaughter of Bart Hawk, one of the Blackhawks, but since most of the Blackhawks are still in WWII times, I decided to make her the granddaughter of Zinda Blake instead. I'll explain more when I make a dedicated post for her.