Letter to Caroline Sturgis
p239“especially one on his friends the two Bandieras and Rufini, headed 'Italian Martyrs.”
Fuller, Margaret. The Letters of Margaret Fuller. Edited by Robert N. Hudspeth. Vol. IV. Ithaca: Cornell University Press, 1987.
Fuller explicitly identifies Mazzini's essay by its heading "Italian Martyrs" and notes it concerns "his friends the two Bandieras and Rufini." Hudspeth identified this as The Martyrs for Italian Liberty, a two-part essay Mazzini published in People's Journal (vol. 1, pp. 121–23 and 293–94), treating the executed Bandiera brothers and Jacopo Ruffini.