Letter to Unknown
p159“I have had,—while staying a day or two in Boston,—some of Shirley's, Ford's, and Heywood's plays from the Athenaeum.”
Fuller, Margaret. The Letters of Margaret Fuller. Edited by Robert N. Hudspeth. Vol. I. Ithaca: Cornell University Press, 1983.
Inferred Hudspeth identified John Ford's Dramatic Works appeared in London in 1827, likely the recent edition available to her.