[Jazz & Song] Elliot, "Mamma" Cass. (1941 - 1974) Original 1970 PhotographUnusual original 1970 press photograph of the noted American singer, best remembered as Mama Cass of the pop quartet "The Mamas & the Papas, " shown here on a snowmobile at Lake Tahoe. Cass tragically died in 1974 of a heart attack in London after two weeks of sold out performances at the Palladium. 8 x 10 inches. Fine.