The September issue of CHESS LIFE magazine runs Dr. Frank Brady’s The Marshall Chess Club Turns 100 – A Century of American Chess History. If you are not a subscriber, then you should be if you play.
Frank Marshall was the US Chess Champion with a wife (Caroline) and son (Frankie) who was often away at tournaments or lectures; thus his wife had a woman’s weapon in Marshall’s arsenal that eventually got him to see the folly of being absent so much from home. She encouraged him to open a chess club in New York, taking up room within the somewhat infamous restaurant Keen’s Chop House. It had been sued by the actress Lilly Langtry, mistress to The Prince of Wales–later King Edward VII–who insisted that she had the right to dine there despite Keen’s policy of barring women from the premises. She won in the courts and thus brought about a major change in New York women rights.
Research may not be everyone’s foray but I might suggest that anyone interested in finding out the opponent Marshall was playing in a photo could see if it was a tournament game since Dr. Edward Lasker was playing a game as white against Jose Capablanca. The date was 1915. Also, Marshall was playing white against his opponent obviously from the same round. Of course it could be just a friendly game called skittles.
Keen’s was famous as a hangout for artists, actors, sportsmen, musicians and gifted chess players.