There is a rather famous photo taken in the 1910s or 1920s, I believe, of the banner the NAACP would unfurl in front of its headquarters after each of these murders. It said something like "Another Negro Was Lynched Yesterday." I'm working from memory, so I may be wrong about the date and the precise wording; but my point is the NAACP tried to keep a close watch and an accurate count, and to blare the awful news to the country. HW