Honey West - that would align with the story - was it Wujiing - he was the “hidden” child no one knew of. And that episode was right at the beginning. Somehow I keep thinking there is a second child that is / was hidden in some way

lara1, that's what I've always thought, too. When Red was first looking up Jolene that's where I had thought they might be going with her, but another red herring. Same with Zoe, but, of course, she turned out to be Berlin's daughter. And I've often wondered about Naomi and Jennifer in witness protection. Who were they really being protected from? Red or someone/something else? "She knew you would come for her, so she left", Naomi told him. Why hasn't Red been shown to have tracked her down? Yet. Maybe he has? Or maybe Liz has kept him too busy to do it, or maybe she's not in imminent danger like Naomi was from Berlin. But in any case, I  now think that the danger to them back when Red "disappeared" might be tied into Seaduke. Wish we had clearer timelines for all of that than "thirty years ago".