I'd consider her JLA 1969 onwards (after switching earth) appearances bronze age. JLA of that era had already transitioned. If not then, right after with switch to satellite. In any event, I'm definitely seeking those featuring in stories that feel like silver age, as said in original post "the line between silver and bronze can be blurry, but I'm really asking about the more silvery stories"
Not just characters created during silver age, but the stories/characters as they were in the silver age, rather than as they developed later.
Bronze age is great, but it's an apples-to-oranges comparison with silver age to me, which is why I trying to limit this thread to just the one era of comic books (for more "fair" comparison).