Lockhart died of natural causes Oct. 23 at her home in Santa Monica, California, with her daughter June Elizabeth and granddaughter Christianna by her side, according to a statement sent to USA TODAY by her representative,

June Lockhart, right, who played the character of Ruth Martin, mother of Timmy Martin, played by Jon Provost, left, during the classic series "Lassie," poses for a photograph with Lassie, 9th generation,

June Lockhart, who became famous in the 1950s and '60s for her starring roles in 'Lassie' and 'Lost in Space,' has died at 100.

June Lockhart, the actor best known for her role as the matriarch in the TV series "Lassie", has died, her family spokesperson said Saturday.

June Lockhart, iconic Lost in Space and Lassie star, died at age 100 after remarkable career spanning TV, film and NASA advocacy.

The Tony Award-winning star’s career spanned eight decades, and included roles in Petticoat Junction, Happy Days, and Grey’s Anatomy

Actress June Lockhart, best known for her roles in Lassie and Lost in Space, died at age 100 on Thursday. What To Know. Lockhart died of natural causes in her Santa Monica, Califo

June Lockhart, the actress known for Lassie, Lost in Space and Meet Me in St. Louis, has died. She was 100. The Tony-winning actress from the Golden Age of Hollywood died Thursday night of natural causes at her Santa Monica home with daughter June Elizabeth and granddaughter Christianna by her side.