claiming "Forty-Eight Hours" was coined to highlight Doubleday's supposed incompetence and slowness to act. Washington Doubleday assumed administrative duties in the defenses of Washington, D.C., where he was in charge of courts martial, which gave him legal experience that he used after the war. His only return to combat was directing a portion of the defenses against the attack by Confederate Lieutenant General Jubal A. Early in the Valley Campaigns of 1864. Also while in Washington, Doubleday testified against George Meade at the United States Congress Joint Committee on the Conduct of the War, criticizing him harshly over his conduct of the Battle of Gettysburg. While in Washington, Doubleday remained a loyal Republican and staunch supporter of President Abraham Lincoln. Doubleday rode with Lincoln on the train to Gettysburg for the Gettysburg Address and Col. and Mrs. Doubleday attended events with Mr. and Mrs. Lincoln in Washington. Postbellum career After the Civil War, Doubleday mustered out of the volunteer service on August 24, 1865, reverted to the rank of lieutenant colonel, and became the colonel of the 35th U.S. Infantry in September 1867. He was stationed in San Francisco from 1869 through 1871 and he took out a patent for the cable car railway that still runs there, receiving a charter for its operation, but signing away his rights when he was reassigned. In 1871, he commanded the 24th U.S. Infantry, an all African-American regiment with headquarters at Fort McKavett, Texas. He retired in 1873. In the 1870s, he was listed in the New York business directory as a lawyer. Doubleday spent much of his time writing. He published two important works on the Civil War: Reminiscences of Forts Sumter and Moultrie (1876), and Chancellorsville and Gettysburg (1882), the latter being a volume of the series Campaigns of the Civil War. Theosophy In the summer of 1878, Doubleday lived in Mendham Township, New Jersey, and became a prominent member of the Theosophical Society. When two of the founders of that society, Helena Blavatsky and Henry Steel Olcott, moved to India at the end of that year, he was constituted as the president of the American body. Death Doubleday died of heart disease in Mendham Township on January 26, 1893. Doubleday's body was laid in state in New York's City Hall and then was taken to Washington by train from Mendham, and was buried in Arlington National Cemetery in Arlington County,