June Lockhart, cherished for her iconic roles as the quintessential TV mom, boasts a career spanning nine decades, reaching far beyond her beloved character, Ruth Martin, on “Lassie.” From 1958 to 1964, she portrayed Timmy’s nurturing mother alongside Jon Provost as Timmy, forging a deep bond with the eponymous collie. From 1965 to 1968, Lockhart captivated audiences as Dr. Maureen Robinson, the resolute matriarch in “Lost in Space.” Her expansive career has seen roles in a plethora of TV series including “Bewitched,” “Petticoat Junction,” “Magnum, P.I.,” “Step by Step,” and “Beverly Hills, 90210.”….