Helen Charlotte Porter was born in Towanda, Pennsylvania, in 1857, one of three children of Henry Clinton Porter, a physician, and Elisa Eleanor Porter. She later changed her name to Charlotte Endymion Porter, taking her middle name from a poem by John Keats. She attended Wells College in New York, graduating in 1875 and extending her studies in Shakespeare and French drama at the Sorbonne in Paris.
Journal editor and founder
In 1883, having moved to Philadelphia, Pennsylvania, she became the editor of the journal Shakespeariana. Through her work with this journal, she met her life partner, the writer Helen Archibald Clarke, with whom she afterwards collaborated on many projects. Porter resigned from the journal in 1887 after a dispute over her plans for expansion, following which she became for a short time the editor of the journal Ethical Record. In 1889, Porter and Clarke founded the quarterly journal Poet Lore in Philadelphia, later moving it to Boston. Its stated aim was to champion the "comparative study of literature" and the work of Shakespeare and Robert Browning. After the first few years, the journal's focus on writing about Shakespeare and Browning shifted to encompass a broader view of world literature. In keeping with its mission, the magazine published few American writers but many from around the world, often in translation. Poet Lore helped introduce American readers to the work of such early modern writers as Henrik Ibsen, August Strindberg, Gabriele D’Annunzio, Selma Lagerlöf, Gerhart Hauptmann, Maxim Gorky, Maurice Maeterlinck, Arthur Schnitzler, and Rabindranath Tagore. Many of these translations were by Porter, who developed a reputation as a good translator. Porter and Clarke sold Poet Lore in 1903 but continued for many years as editors. Poet Lore is still in print, the oldest continuing poetry magazine in the United States.
Authorship
In tandem with her work on the journals, Porter edited a 40-volume edition of Shakespeare and co-edited with Clarke editions of the British poets Robert Browning and Elizabeth Barrett Browning. Together with Clarke, she published Clever Tales, a book of translations of European authors like Villiers de L'Isle Adam, Ludovic Halévy, Vsevolod Garshin, Jakub Arbes, and Strindberg. Along with her work on Poet Lore, these efforts are credited with helping to shape American literary taste of the day. Porter was also a poet, publishing in magazines such as The Atlantic Monthly, The Century Magazine, and Ainslee's Magazine and producing a volume of poems entitled Lips of Music in 1910. She published some of her poems under the pseudonym 'Robert Iphys Everett', and some of her poems were set to music by Clarke, Margaret Ruthven Lang, and Mabel Hill. Porter was a member and longtime vice-president of the Boston Browning Society. The society sponsored Porter's 1902 stage adaptation of Robert Browning's tragedy Return of the Druses. Porter was also a member of Julia Ward Howe's Boston Authors Club.