"By the time of the film's release in 1939, there was some question as to who should receive screen credit", writes Yeck. "But despite the number of writers and changes, the final script was remarkably close to Howard's version. The fact that Howard's name alone appears on the credits may have been as much a gesture to his memory as to his writing, for in 1939 Sidney Howard died at age 48 in a farm-tractor accident, and before the movie's premiere." Selznick, in a memo written in October 1939, discussed the film's writing credits: "can say frankly that of the comparatively small amount of material in the picture which is not from the book, most is my own personally, and the only original lines of dialog which are not my own are a few from Sidney Howard and a few from Ben Hecht and a couple more from John Van Druten. Offhand I doubt that there are ten original words of [Oliver Garrett's in the whole script. As to construction, this is about eighty per cent my own, and the rest divided between Jo Swerling and Sidney Howard, with Hecht having contributed materially to the construction of one sequence."