The majority of these poems are from the 1940s, based on the names of the (known) poets and the fact that many of them show Gertrude Ryder Bennett's markings and marginalia. Poems whose authors are known are arranged alphabetically by author, while other poems are arranged alphabetically by title. There are some poems written by later members of the Circle included here, as well as in Lederer's scrapbooks. Any user seeking permission to use any poem in a publication must consult with library staff, as the rights status of these poems has not been evaluated.