Plays:
* The Blue Bird (1911): A musical adaptation of Maurice Maeterlinck's play.
* The Little Shepherd of Kingdom Come (1915): A musical adaptation of John Fox Jr.'s novel.
* The Woman in the Case (1916): A play based on a novel by the same name.
* The Music Master (1916): A play based on a novel by the same name.
* The Very Minute (1923): A comedy.
Books:
* The Little Shepherd of Kingdom Come (1915): A novelization of her play.
* The Music Master (1916): A novelization of her play.
* The Woman in the Case (1916): A novelization of her play.
* The Very Minute (1923): A novel based on her play.
* The Rose of Old Granada (1924): A historical novel set in Spain.
Other Works:
* Numerous short stories and articles published in magazines and newspapers.
While her works are not as widely known today, Ethel R. Peyser was a successful and respected writer in her time. Her plays were particularly popular, with many productions running for several years.