After secession, Hubbard ran unsuccessfully for a seat in the Congress of the Confederate States. Then he started recruiting a unit that would become the 5th Texas Infantry Battalion, serving as the commanding officer. Despite difficulties in recruiting infantry in Texas, the battalion became integrated into a regiment in March 1862; and Hubbard became the major of the 22nd Texas Infantry. He was promoted to lieutenant colonel in May and became the commanding full colonel on June 17, 1862. Staying in the Trans-Mississippi Department the 22nd was transferred to Arkansas, where it was grouped into the 1st Brigade of Walker's Greyhounds, a division made up solely of units from Texas under command of Maj. Gen. John George Walker. Hubbard fought in the Battle of Young's Point. After serving on a military court, Hubbard returned to his regiment in time to participate in the Red River Campaign. Afterwards, he fought at Jenkin's Ferry. In February 1865, back in Texas, Hubbard was appointed commander of the 1st Brigade. He was finally paroled on July 12, 1865.
Politics
Hubbard's postwar law practice, supplemented by income from real estate and railroad promotion, enabled him to resume his political career by 1872, when he was chosen presidential elector on the Horace Greeley ticket. Hubbard was subsequently elected Lieutenant Governor of Texas in 1873 and 1876 and succeeded to the governorship on December 1, 1876 when Richard Coke resigned to become a United States Senator. Hubbard's gubernatorial term was marked by post-Reconstruction financial difficulties, by general lawlessness, and by the fact that the legislature was never in session during his administration. Though political opponents prevented his nomination for a second term, he remained popular with the people of Texas. His accomplishments as governor include reducing the public debt, fighting land fraud, promoting educational reforms, and restoring public control of the state prison system. In 1884, Hubbard served as temporary chairman of the Democratic national nominating convention. He supported the party nominee, Grover Cleveland, and was appointed Minister to Japan in 1885 after Cleveland won the presidency. Hubbard's four years in Japan marked a delicate transitional period in Japanese-American relations. Japan was emerging from feudalism and dependency and had begun to insist on recognition as a diplomatic equal, a position Hubbard strongly supported. He concluded with Japan an extradition treaty, and his preliminary work on the general treaty revisions provided the basis for the revised treaties of 1894–99. When he returned to the United States in 1889, he wrote a book based upon his diplomatic experience, The United States in the Far East, which was published in 1899.
Personal
Hubbard was a Baptist, a Freemason, and a member of the Board of Directors of Texas A&M University. In 1876 he was chosen Centennial Orator of Texas to represent the state at the World's Exposition in Philadelphia, Pennsylvania. There he urged national unity and goodwill in an acclaimed oration. Hubbard was first married to Eliza B. Hudson, daughter of Dr. G. C. Hudson of LaFayette, Alabama, on November 30, 1858; one daughter of this marriage, Serena, survived. Hubbard's second marriage, on November 26, 1869, was to Janie Roberts, daughter of Willis Roberts of Tyler. Janie died during Hubbard's mission to Japan, leaving him a second daughter, Searcy. Hubbard lived his final years in Tyler, where he died on July 12, 1901. He is buried in Oakwood Cemetery, Tyler. Hubbard in Hill County is named for him.
