Today’s research led me into the world of lip reading and an amazing puzzle created in 1914. Too late for my Emily to refer to, but useful for my purposes
The photograph was taken just as each boy starts to pronounce his name. And yes, you can tell which boy is which – just by looking at their mouths.
The twelve names are Oom, Alden, Eastman, Alfred, Arthur, Luke, Fletcher, Matthew, Theodore, Richard, Shirmer, and Hisswald.
Further Sam Lloyd puzzles can be found at Sam Loyd.com