John L. Sullivan was born on October 15, 1858 in Roxbury, Boston, MA. He is the link between bare knuckles and glove fighting and is considered to be one of the best heavyweights ever. Presented here is a real photo postcard of John L. Sullivan. This real photo postcard of John L. Sullivan is 3 1/2" x 5 1/2." The photo is clean and there are no creases, rips or tears.