. . "Maryknoll Sister murdered in El Salvador" . . "Clarke, Maura"@en . . . "Sister Maura Clarke, M.M., was an American Roman Catholic Maryknoll Sister, who served as a missionary in Nicaragua and El Salvador. She worked with the poor and refugees in Central America from 1959 until her murder in 1980."@en . . . . "1980-12-02Z"^^ . . "1980Z"^^ . . "1931-01-13Z"^^ . "Sister Maura Clarke, M.M."@en . "1931Z"^^ . .