Add Yahoo as a preferred source to see more of our stories on Google. Lassie and June Lockhart in 2009. The actor, who joined the cast of "Lassie" in 1958, was known for her warm portrayal of mothers ...

LOS ANGELES (AP) — June Lockhart, who became a mother figure for a generation of television viewers whether at home in “Lassie” or up in the stratosphere in “Lost in Space,” has died. She was 100.

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 ...

LOS ANGELES — June Lockhart, who became a mother figure for a generation of television viewers whether at home in "Lassie" or up in the stratosphere in "Lost In Space," has died. She was 100. Lockhart ...