New settlements appeared in the pine wilderness of the mainland and on the uninhabited Atlantic Ocean barrier islands. These changes caused social and political conflicts, and new development assaulted the fragile seashore environment. Fishing and shipbuilding were key industries throughout the early history of Cape May County. In addition, familiar industries such as cranberry harvesting and nearly forgotten endeavors such as goldbeating, sugar refining, and cedar shingle mining played vital roles in the county's economic development. Dorwart also traces the origins of the seashore resort industry through the history of the city of Cape May, with its unique architectural styles and heritage, as well as the founding of Wildwood, Ocean City, and the newer resort towns.

Some vols., 1920-1949, contain collections of papers according to subject.