I mean...apparently the Gaonas exist in the DCU, so you wouldn’t be the first person to reference real life people in relation to dick grayson’s circus background
I have so many stupidly niche headcanons that I usually don’t even notice myself having.
Like, okay, so Flash villain The Trickster and Dick Grayson both come from aerialist families, right? And it’s a pretty small community. (I think Trickster might have gotten a different background in the last reboot but I super don’t care.)
Anyway I headcanon they both know Nik Wallenda due to circus community ties and turn up sometimes when he does stunts like crossing Niagara Falls on the high wire, to show moral support.
If Dick notices James he pretends not to. They’re not on the super-clock.