Bastrop was a Confederate stronghold during the American Civil War until January 1865, when 3,000 cavalrymen led by Colonel Embury D. Osband of the 3rd United States Colored Cavalry Regiment, embarked from Memphis, Tennessee, for northeastern Louisiana. Landing first in southeastern Arkansas, Osband and his men began foraging for supplies into Louisiana and established headquarters at Bastrop. They brought in a large number of horses, mules, and Negroes, according to the historian John D. Winters in "The Civil War in Louisiana." When Osband learned that Confederate Colonel A.J. McNeill was camped near Oak Ridge in Morehouse Parish with 800 men, he sent a brigade into the area. The Union troops found fewer than 60 Confederates, most of whom fled into the swamps, leaving behind horses and mules.*