Elinor Remick Warren's career as a composer, concert pianist, and accompanist spanned 75 years of American musical history. She began writing music in 1904, aged 4. Her first published composition, a song, was accepted by G. Schirmer in 1916. Thereafter, her compositions appeared regularly until 1990. Her full oeuvre is catalogued here, along with performance information, discography, and review and critical commentary, all of which is documented, cross-referenced, and indexed. A biographical sketch is supplemented by a long interview conducted by the author with Warren, four years before the composer's death in 1991. Among the appendixes are textual sources for Warren's many vocal compositions.