The house has been torn down but this is the approximate location - 10100 Sunset Boulevard (reference?).

Elliot with Johnny Cash, 1969.

Cass Elliot (born Ellen Naomi Cohen; September 19, 1941 – July 29, 1974), also known as Mama Cass, was an American singer and member of The Mamas & the Papas. After the group broke up, she released five solo albums. In 1998, Elliot, John Phillips, Denny Doherty, and Michelle Phillips were inducted into the Rock and Roll Hall of Fame for their work as The Mamas & the Papas.

• http://en.wikipedia.org/wiki/Cass Elliot