This looks exciting: report of a short serialized novel the young Walt Whitman published anonymously in 1852. University of Houston grad student Zachary Turpin discovered the work — The Life and Adventures of Jack Engle — in the archives of the Library of Congress:
Tucked away in the long-forgotten, never-digitized “Sunday Dispatch”, the short novel was all but lost to the ages. But Turpin, who unearthed “Jack Engle” in the Library of Congress archive, used unpublished notes and outlines to connect the story to Whitman, one of America’s best known and most beloved poets.
PREFATORY.—Candidly reader we are going to tell you a true story. The narrative is written in the first person; because it was originally jotted down by the principal actor in it, for the entertainment of a valued friend. From that narrative, although the present is somewhat elaborated, with an unimportant leaving out here, and putting in there, there has been no departure in substance. The main incidents were of actual occurrence in this good city of New York; and there will be a sprinkling of our readers by no means small, who will wonder how the deuce such facts, (as they happen to know them) ever got into print.