Slavery and freedom on the middle ground : Maryland during the nineteenth century / Barbara Jeanne Fields. Fields, Barbara Jeanne. Slavery Maryland History 19th century. African Americans Maryland Economic conditions. E445.M3 F54 1985 975.2 19 FIS Includes index. Bibliography: p. 209-258. New Haven : Yale University Press, c1985. c1985. 1985 Text xv, 268 p. : eng Yale historical publications. Miscellany ; 123 Maryland Race relations. Maryland Maryland