I also gathered film material from a handful of newspapers including the Poughkeepsie Eagle-News (from Poughkeepsie, New York), Lancaster Daily Intelligencer, (from Lancaster, Pa.), Knoxville Journal (from Knoxville, Tennessee), Indianapolis Times , San Antonio Express, and Denver Post. I found some nice advertisements, and a few original reviews.
Also, of late, I have also been borrowing books. I managed to get ahold of a few vintage editions of Margarete Bohme's Tagebuch einer Verlorenen, the 1907 novel which was the basis for the 1929 film Diary of a Lost Girl. It was interesting to examine different editions. I also got ahold of Un homme en habit, the 1922 French play which was the basis of the 1927 film, Evening Clothes.
Here is a scan of the remarkable cover of the first edition of Bohme's book.