Today, we take for granted the ability to send photos halfway around the world in an instant. (Which is probably why that popular smartphone photograph service is called Instant-Gram™.) But a century ago, getting a photograph across an ocean was a much more involved process than simply snapping a mirror selfie and publishing it to 3,000 of your closest friends. In the early morning of January 24, 1926 an American oceanliner called the S.S. President Roosevelt was carrying 200 passengers bound fo...