Breese, Donald H. James L. Orr, Calhoun, and the Cooperationist Tradition in South Carolina." South Carolina Historical Magazine 80 (October 1979): 273-85.
Foran, William A. Attempted Conversion of James L. Orr." Journal of Negro History 39 (April 1954): 137-9.
Leemhuis, Roger P. James L. Orr and the Sectional Conflict. Washington: University Press of America, 1979.
Orr, James Lawrence. An address delivered before the Philosophian and Adelphian societies of the Furman University. Greenville, S.C.: Printed by G. E. Elford & co., 1855.
. The Cincinnati Convention. Washington: Printed at H. Polkinhorns, 1855.
. The slavery agitation. Speech of Hon. J. L. Orr, of South Carolina, in the House of Representatives, May 8, 1850, in Committee of the Whole on the State of the Union, on the Presidents message transmitting the constitution of California. [Washington: Printed at the Congressional globe office, 1850].
. Speech of Hon. J. L. Orr, of South Carolina, on the bill granting public lands to Missouri to aid in constructing railroads. Delivered in the House of Representatives, February 24, 1852. Washington: Printed at the Congressional globe office, 1852.
. Speech of the Hon. James L. Orr, of South Carolina, on the slavery question. Delivered in the House of Representatives, May 8, 1850. Washington: Printed by J. T. Towers, 1850.
Weller, John B. Speeches of Messrs. Weller, Orr, Lane, and Cobb, delivered in Phoenix and Depot hall, Concord, N. H., at a mass meeting of the Democratic party of Merrimac County. [Concord?: N.p., 1856?]