1823  These birds are most numerous in large dyke marshes. . . .
1830  About Annapolis, we first meet with dyked marsh, which is not however equal in quality to that higher up the bay shores.
1892  (1908)  There are besides some large tracts of marsh lands along the shores of the Bay of Fundy with soil of almost inexhaustible fertility. These are classed as "salt marsh" and "dyked marsh," the first named being subject to occasional overflow by the sea and therefore useful only for . . . fodder and for pasturage.