[@Sep] I think Don and Dawn should be Barry's kids and Bart could have been born by now. 

Also minor note, I decided to have Superman and the others start their career in 2016 instead of 2013 and so a few years might be shaved off of your character's age. Even if they're pushing middle age they can still be active however, a lot of superhumans have longer lifespans and I imagine future medicine has helped ease the aging process greatly.