In Harvard University (not Widener) is the draft of Dr. Jekyll and Mr. Hyde, in the handwriting of the dramatist, T. R. Sullivan. A note on the first page written by him says, "Fair copy as revised with parts sent to Mansfield to Washington, D. C. Sept 25, 1886. " "Begun May 2, 1886 Finished July 1886."

Much of the manuscript has entirely been rewritten, which is interesting since Mansfield states that he told Sullivan how to prepare the story for the stage, that the first draft had to be practically re-written by himself, and that Sullivan supplied, virtually, only the technical composing end.