User blog comment:Tupka217/Creative Comment - Greg and Brandon talk Zatanna, Rocket and Beast Boy/@comment-98.85.16.172-20120811163843/@comment-5154078-20120816031924

Actually, based off of the Pre-Crisis Earth-Two continuity, the character of Helena Wayne was not even born until Dick Grayson was almost an adult. In the mainstream comics, Catwoman did in fact give birth to a daughter named Helena, after we went through every Robin from Dick to Stephanie Brown. Potentially, the Huntress could be included if Young Justice performs another long time skip.

I'm just saying...