A Boston Supper Party.
When the guests assemble put them in charge of a man with a megaphone and start them through the rooms on a "Seeing Boston" tour. Have fake tablets and different objects to represent the places of interest. These objects could be numbered and turn the "Seeing Boston" into a guessing contest. Give each guest a note book and pencil to enter the correct name opposite the correct number. This can include side trips to Lexington, Concord, Bedford, etc.
Take the folders and circulars of a trip through Boston, cut out the tiny pictures, mount on grey paper, letter with white ink and give them as souvenirs. Or remove all lettering and use these pictures as a contest, asking the guests to name the pictures correctly. For amusement have "Paul Revere's Ride" acted in pantomine, or charades on the different names. For supper serve pork and baked beans, Boston brown bread, pie, tea, etc. Tiny earthen bean-pots, spectacles, handbags, imitation folders—any of these things would do for souvenirs.