Du Bois also edited two earlier magazines, Moon and The Horizon, between 1900-1910. In a 1907 issue of The Horizon, he published a memorable poem on race, labor, and American industrialization called "Song of the Smoke." In June, 1908, he published a second poem in Horizon, "El Dorado" (U-Mass Du Bois papers version here).
Du Bois also published several poems in The Crisis between 1911 and 1922. As with his earlier poem, "Litany of Atlanta," the poems have something of the quality of religious sermons rather than lyrical verse, but they are worth a look in their own right.
A large quantity of Du Bois materials have been made available digitally by the Du Bois Center at the University of Massachusetts, including many unpublished poetry manuscripts and typescripts. The digital collection specifically focused on poetry can be found here.