Letter to George T. Davis
p155“that most exquisite copy from a too rare model, De Lisle's Rosamond, (which could not have been a creation; no mind can compound such an one from elements of knowledge or observation; 'tis too stilly unique.)”
Fuller, Margaret. The Letters of Margaret Fuller. Edited by Robert N. Hudspeth. Vol. VI. Ithaca: Cornell University Press, 1988.
Fuller names the character De Lisle's Rosamond, and Hudspeth identified she refers to Elizabeth Caroline Grey's De Lisle; or, The Distrustful Man.