#11: The Vanishing Daughter in Roseanne/The Conners
In the original run of Roseanne, Jerry, the youngest child of Roseanne and Dan, is born in Season 8. When The Corners spin-off started, Jerry never appeared as a character, with only vague mentions that he’s off working on a boat. The show never explains why he’s missing from the storyline or why the family rarely mentions him.
provided by constative.com