Edith Marie Blossom MacDonald (August 21, 1895 – January 14, 1978), also known as Blossom Rock, was an American actress. Her younger sister was actress and singer Jeanette MacDonald.[1] Rock is probably best known for her role as "Grandmama" on the 1960s horror sitcom The Addams Family.
Rock was born in Philadelphia, Pennsylvania. She died of a stroke on January 14, 1978 in Los Angeles, aged 82.