There was a previous query concerning what happened to Lydia Reed and Michael Winkleman.
Not long before the TNN Reunion show, Kathleen Nolan and Richard Crenna took part in an on line chat. I read the transcript on a website lurid.com that used to have a section for rural tv. As I recall, a question came up about the kids who played Hassie and Little Luke. Kathleen Nolan related the following:
Lydia Reed: After leaving TRM she left acting altogether and is currently a wife and mother living in the San Fernando Valley.
Michael Winkleman: After leaving TRM and finding acting jobs scarce, he too decided to leave acting and was last known to be a greenskeeper at Universal Studios, California.