Ruth Barcan Marcus, in several incidental passages in her later published writings, seems to imply a claim, which has subsequently been stated more explicitly by others,2 and given very wide publicity, that certain remarks on names in her colloquium talk “Modalities and Intensional Language” anticipate in an important but unacknowledged way Saul Kripke’s discussion of names in his lecture series “Naming and Necessity”. My aim in the present study is to assess the textual evidence bearing on such claims.