Daly's Bartenders' Encyclopedia by Tim Daly (1903, p.39)

2 dasheslemon juice — Source says two or three dashes.acid
1 pony glassJamaica rum base
1 spoonfulsugar — Dissolved in a little water or seltzer.base
0.5 glassWhiskey — Mount Vernon whiskeybase
claret — Top it off with claret.other
ice — fine iceother
  1. Dissolve the sugar in a little water or seltzer and add the lemon juice, Mount Vernon whiskey, Jamaica rum, and fine ice.
  2. Mix well with a spoon, decorate with fruit, top with claret, and serve with straws.

Garnish: Orange, pineapple, berries, and other fruit in season.

Ice: Fine ice

Daly explicitly ties the drink to the hostelries around the Massachusetts State House in Boston, which makes the naming provenance useful.

The fruit-decorated claret top and spooned single-glass punch service are central to the recipe's identity.

See also: St. Charles Punch, Monte Carlo Punch