Overview
- Family representatives said she died of natural causes at her Santa Monica home on Oct. 23 at about 9:20 p.m., with daughter June Elizabeth and granddaughter Christianna at her side.
- Lockhart rose to TV prominence as Ruth Martin on Lassie from 1958 to 1964, then as Dr. Maureen Robinson on Lost in Space from 1965 to 1968.
- Her career honors included two Emmy nominations for Lassie, a 1948 Special Tony for For Love or Money, and two stars on the Hollywood Walk of Fame.
- A longtime space advocate, she maintained close ties with NASA and received the agency’s Exceptional Public Achievement Medal in 2013.
- Tributes from colleagues including Angela Cartwright and Bill Mumy highlighted her wit, mentorship and enduring influence across stage, film and television.