Henry J.W. Dam

Henry Jackson Wells Dam (April 27, 1856 – April 26, 1906) was a journalist and playwright. His story "The Red Mouse" was adapted for the film Her Silent Sacrifice. He wrote the words to the musical comedy The Shop Girl. He conducted the only interview ever given by Wilhelm Röntgen about his Röntgen rays (X-rays) in 1896. He also interviewed Guglielmo Marconi about his radio telegraph transmitter in 1897.

His work was published in McClure's Magazine, The Black Cat, and The Strand Magazine. He was also a playwright.Dam traveled to London the cover the Jack the Ripper murders, and has been discussed as a possible author of some of the Jack the Ripper letters.