Neil Clark, the author of “Dock Boss: Eddie McGrath and the West Side Waterfront,” got in touch when he saw the announcement of my book, “The Man With the Sawed-Off Leg and Other Tales of a New York City Block.” He also dealt with the Rubel robbery — a major part of MWSOL — in his account of waterfront gangsters, and was delighted to hear about his old historical pals from another source.

Neil kindly sent me some materials I had not seen. Here is a photo of Bernard “Bennie the Bum” McMahon, the man of the title. He died a gruesome death.