Crossword puzzle clue "pond near concord mass"

Pond near Concord, Mass.

Literary giant from Concord, Mass.

Classic novel written at the Orchard House in Concord, Mass. (and a hint to something in this puzzle)

There's a famous one near Concord

Cabin site near Concord, Massachusetts

The "pond" in a Brit's "across the pond": Abbr.

"An old silent pond / A frog jumps into the pond / Splash! Silence again," e.g.

They mass for Mass