Nineteenth-Century French Fiction Writers.
Edited by C. Savage Brosman.
Detroit: Gale Research, 1992.
This series has two excellent volumes on French literature titled Romanticism and Realism, 1800-1860 (v. 119) and Naturalism and Beyond, 1860-1900 (v. 123). Each source provides detailed biographical, critical, and bibliographic information on famous 19th century French writers.