In the spring of 1864, the Confederate Army of Tennessee, under Gen. Joseph E. Johnston, was engaged in a campaign of maneuver against William T. Sherman, who was driving from Chattanooga toward Atlanta. Despite his two damaged limbs, Hood performed well in the field, riding as much as 20 miles a day without apparent difficulty, strapped to his horse with his artificial leg hanging stiffly, and an orderly following closely behind with crutches. The leg, made of cork, was donated (along with a couple of spares) by members of his Texas Brigade, who had collected $3,100 in a single day for that purpose; it had been imported from Europe through the Union blockade. On May 12, Hood was baptized by Lieutenant General Leonidas Polk, the former Episcopal Bishop of Louisiana. Colonel Walter H. Rodgers, a witness to the baptism, stated that Hood "looked happy and as though a great burden had been lifted."