Woody Guthrie's songs are the best bet---with special attention to the things done for the Governmental agencies re: Dams and such. Also, Pastures of Plenty. Those are the patriotic pieces. FOr realism there is a lot more.

Do not, however, forget Phil Ochs and The Power and the Glory. His topical songs too can be considered patriotic in the sense of trying to awaken people to what is really happening.

Bill Hahn