June Lockhart

Hollywood is mourning the loss of June Lockhart, the cherished actress who captured hearts as the caring mother on Lassie and Lost in Space. Lockhart passed away peacefully on Thursday in Santa Monica at the age of 100, her family confirmed.
Born on June 25, 1925, in New York City, June came from a family deeply rooted in show business. Her father, Gene Lockhart, was a well-known character actor with an Oscar nomination to his name, and her mother, Kathleen Lockhart, was also an actress. Remarkably, June made her film debut alongside both her parents in MGM’s A Christmas Carol (1938), playing one of the Cratchit children.
> “You could say I was one of Edison’s good ideas,” she once joked, recalling how her parents met through inventor Thomas Edison.
Before turning 25, Lockhart had already built an impressive Hollywood résumé. She starred opposite legends like Bette Davis, Charles Boyer, Gary Cooper, and Judy Garland in classics such as All This, and Heaven Too (1940), Sergeant York (1941), and Meet Me in St. Louis (1944).
But it was her role as Ruth Martin, the warm and steadfast mother on CBS’s Lassie, that made her a household name. Joining the series in 1958, Lockhart portrayed the kind of mom every child wished they had — gentle, firm, and endlessly patient. Her natural charm helped make Lassie one of the most beloved family shows of its time, earning her an Emmy nomination in 1959.
When Lassie changed direction in the mid-’60s, Lockhart didn’t slow down. She soon stepped into another iconic role — Maureen Robinson on Lost in Space (1965–1968). As the strong yet nurturing matriarch of a stranded spacefaring family, she inspired a new generation of sci-fi fans.
In later years, Lockhart appeared on popular shows such as Petticoat Junction, Full House, The Drew Carey Show, and General Hospital. She even made a cameo in the 1998 film adaptation of Lost in Space, proving her enduring connection to the show’s legacy.
Beyond her acting career, June Lockhart was a passionate advocate for science and space exploration. She worked closely with NASA, attending events, supporting missions, and inspiring young minds to look toward the stars. In recognition of her enthusiasm and public outreach, NASA honored her with its Exceptional Public Achievement Medal in 2013.
Lockhart is survived by her daughters, actress Anne Lockhart and June Lockhart Jr., as well as her granddaughter, Christianna.
June Lockhart’s life was a century-long celebration of grace, intelligence, and heart — on screen and beyond. Whether she was guiding Lassie through trouble or steering her family across the galaxy, she always reminded audiences what true compassion looks like.