Because I like knowing such things, and seeing how they compare to each other.
This chart was getting away from me, and I had to stop adding more names at SOME point. I'm trying to only show characters who were under 18 when they were introduced, were children of the heroes, or had an obviously mentor/student relationship. Still, I've had to add another copy of the chart at the bottom of the page, filled with all the obscure characters I love. That one also has links to the wiki pages for the characters, since Tommy Blake Jr and AJ aren't exactly well known.
|Year||Super Family||Batfamily||Arrow Family||Flash Family||Aquaman Family||Wonder Family||Others of Interest|
|2012/13||Jon Lane Kent||Duke Thomas
|Artemis Crock (TV)||Kaldur'ahm (TV)
|2006/07||Chris Kent||Damian Wayne
|2004/05||Kara Zor-El||Lorena Marquez|
|1998/99||Cass Cain||Irey+Jai West
|1996/97||Linda Danvers||Cissie King-Jones||Cassie Sandsmark|
|1994/95||Natasha Irons||Connor Hawke||Bart Allen||Artemis|
|1992/93||Kon-El||Steph Brown||Jesse Chambers||Bobby Long||Rose Wilson-Worth|
|1982/83||Jason Todd||Lyta Trevor-Hall|
|1976/77||Karen Starr||Helena Wayne|
|1964/65||Arthur Curry Jr||Donna Troy|
|1940/41||Dick Grayson||Roy Harper Jr|
look her up if you want
(*)Damian Wayne's first appearance was technically 1987, but I don't care
(|)Equinox was also born this year but we're all pretending he wasn't
If you see any mistakes or have characters you think I should add, please email me. Same name, just at gmail.com. I really don't know who's been showing up lately, so I'd love a heads up.