June Lockhart is an American retired actress, beginning a film career in the 1930s and 1940s in films such as A Christmas Carol and Meet Me in St. Louis. She appeared primarily in 1950s and 1960s television and with performances on stage and in film. On two television series, Lassie and Lost in Space, she played mother roles. Lockhart also portrayed Dr. Janet Craig on the CBS television sitcom Petticoat Junction. She is a two-time Emmy Award nominee and a Tony Award winner. From Wikipedia
