Meanwhile, Union men feared Johnston would aid such a plot and communicated their fears to Washington asking for his replacement. Brig. Gen. Edwin Vose Sumner was soon sent west via Panama to replace Johnston in May 1861. Johnston resigned his commission on May 31st, and after Sumner arrived turned over his command and moved with his family to Los Angeles. He would soon travel with other Southerners across New Mexico Territory to Texas and become commander of the Confederacy's western armies. He died at the Battle of Shiloh.