http://boxrec.com/en/event/58541
Beckett's opponent wasn't Porky Dan Flynn, but Corpl. Dan Flynn of A.S.C. ( http://boxrec.com/en/boxer/729016 ), Beckett weighing 12 st. 5 lb. (173 pounds) and Flynn ("champion of Scotland") being 1 lb heavier (174 pounds).
Source: 1917-06-19 The Sportsman (London) (page 3)
