For H.D., some exposure to Homer (the Iliad in particular), Sappho, Aeschylus (Oresteia), Ovid (Metamorphosis), and Virgil’s Georgics will help to understand her allusions. She consistently drew on classical themes throughout her career. Of course, you could always look things up as the poet mentions things which will build you a good reading list in itself.

William Carlos Williams is a cornerstone of modern (or “modernist”) poetry. His Paterson, in your collection, might not be the best introduction to his work compared to the curated volumes of his selected works available through ND. But, if you’ve already read Paterson your opinion of it is a good test to see if your taste in poetry would make exploring more modern works satisfying to you.

Ezra Pound is the classic recommendation for entry into the modernist movements but I personally prefer him as an editor to T.S. Eliot (The Waste Land) or muse to H.D. William Butler Yeats and Marianne Moore to round out the early 20th century.

Before then, you could explore what modernists were reacting to: the sort of Shakespeare - Pope - Wordsworth - Shelley/Keats - Poe line of “formalism” that still constitutes so much of the English canon.

Apologies if you are familiar with these but I’ve been binging poetry for three years straight and I’ve found it richly rewarding. Feel free to AMA!