I am sure someone here has probably already worked it out, but it has so far escaped me who the owner of the Mercedes Benz 36/220 sold at Bonham's a few years ago was, blurb linked here, apparent giveaway clues are that the WW1 veteran competed with a Mathis, later a Schneider and that he also owned a 1913 Grand Prix Peugeot called "Laura", does this ring any bells with anyone ?