Much of the reference material comes from the British Chess Magazine, but the BCM publication nearly came to an early end. The following excerpt is taken from the "Half a Century Back" article about "Chess in 1920" :
At the beginning of 1920 the American Chess Bulletin sorrowfully announced the demise of the "B.C.M." after its run of 39 years. This obituary was, as Mark Twain once said of a similar report concerning himself, greatly exaggerated. There is no doubt, however, that this was the greatest crisis in the history of the magazine. When the January number did belatedly appear it came from a new publisher, Walbrook & Co. Ltd., with a new editor, R.C. Griffith, joint author of the original "M.C.O." His team consisted of Sir George Thomas (games), B.G. Laws (problems), C.E.C. Tattersall (endings), R.H.S. Stevenson (British news), and P.W. Sergeant (foreign news). By mid-year Griffith had also taken over the endgame section. No reason was given for Tattersall's disappearance but failing health was the probable explanation. He lived on for many years but was not able to undertake public work.
Sales in January and February were so low that the management drastically reduced its printing, only to find that its desperate appeals for support had borne unexpected fruit, with the result that many new subscribers had to go without the March number. In the end 1920 turned out to be something of a triumph for the new team, for subscriptions climbed from 550 to top the thousand - not including copies sold over the counter - before the end of the year. ...
It is gratifying to know that WLCC members helped continue a publication that would later become instrumental in the reconstruction of its own history.