Sadly most of the main cast members from the comedy TV series Petticoat Junction (1963 - 1970) have passed away, but we found 3 that are still alive:
Linda Henning (born Linda Kay Henning on September 16, 1944 in Los Angeles, California) who played Betty Jo Bradley is still alive, she's 67 years old.
Lori Saunders (born Linda Marie Hines on October 4, 1941 in Kansas City, Missouri) who played Bobbie Jo Bradley is still alive, she is 70 years old.
Mike Minor (born Michael Fedderson on December 7, 1940 in San Francisco, California) who played Steve Elliott is also still alive at 71 years of age.
The series premiered on September 24, 1963, and after 7 seasons, and more than 220 episodes, ended on April 4, 1970.