June Lockhart -- a legendary television actress of the 1950s, '60s and '70s -- has died. Lockhart passed away Thursday in Santa Monica, just after 9 PM local time with her daughter June Elizabeth , and her granddaughter, Christianna , by her side, TMZ can confirm. June died from natural causes. The daughter of actors Gene and Kathleen Lockhart , June secured her first credited role in the 1940 movie "All This, and Heaven Too" when she was still just a teenager. The Most Magical Place on Earth