The University of Florida holds a corrected proof copy of William Allingham's poem Mervaunee and v. 34 of The Cornhill Magazine in which the poem was first published, Part 1 in July 1876 and Part 2 in August. The linked pages present the published version, the proof, and a side-by-side comparison of the two. On the first page of the proof, there is a crossed-out penciled version of a stanza which is also written in ink at the bottom of p. 14. As the first version is upside down, an inverted image of the page is also provided.
Thanks to Mark Samuels Lasner, author of William Allingham: A Bibliographical Study (1993), for the reference to Samira Husni's William Allingham: A Bibliography (Beirut, 1984), which identifies the first appearance in print of Mervaunee.