Lyman Underwood Humphrey (July 25, 1844 – September 12, 1915) was the 11th Governor of Kansas.
Humphrey was born in New Baltimore, Ohio to Lyman and Elizabeth (Everhart) Humphrey, one of two sons born to the couple. His father was born in Connecticut, but relocated to Deerfield, Ohio, where he purchased a tannery formerly owned by Jesse Grant (father of Ulysses S. Grant). Humphrey's father gave up the tannery business after several years and began to practice law. His father died in 1853 and through the influence of his mother, Humphrey received a common school education first in New Baltimore and then high school in Massillon, Ohio. He left school in 1861 to join the 76th Ohio Infantry.
The 76th Ohio was part of the Army of Tennessee. Humphrey rose quickly through the ranks and was promoted to first lieutenant. He participated in twenty-seven battles and skirmishes including Fort Donelson, Shiloh, Corinth, the siege of Vicksburg, Resaca, and Atlanta. The regiment participated in the march to the sea and through the Carolinas to the battle of Bentonville. At Ringgold Gap on November 27, 1863, Humphrey was wounded but missed no duty due to the wound. He was mustered out with the regiment at Louisville, Kentucky on July 19, 1865.
Humphrey married Martha Leonard on December 25, 1872, in Beardstown, Illinois. They had two sons.
Following the Civil War, Humphrey attended Mount Union College for one year followed by a year in the law department of the University of Michigan. Short on funds, Humphrey left school, but was admitted to the Ohio bar in 1868. He moved to Shelby County, Missouri where he became a teacher and newspaper editor of the Shelby County Herald. Humphrey was admitted to the Missouri bar in 1870.
The following year, Humphrey moved to Independence, Kansas where he practiced law and started the South Kansas Tribune newspaper. He gave up the newspaper a year later and settled into the practice of law full time, until December 1872 when he helped found the Commercial Bank of Independence. Humphrey became the bank's president and helped reorganize the bank in 1891 as the Commercial National Bank. He continued with the bank until he was elected governor.
Humphrey was a devoted Republican and was active in party politics in every state in which he lived. In 1872 he unsuccessfully ran for the Kansas state legislature because he opposed the issue of railroad bonds. Four years later he was overwhelmingly elected to represent Montgomery County in the Kansas legislature. Before his term expired, Humphrey was appointed lieutenant governor to fill the vacancy left by Melville J. Salter. During the regular election of 1878, he was elected to the same position by a margin of 40,000 votes. Humphrey completed his term as lieutenant governor and was elected to the Kansas Senate in 1884.
Humphrey ran for governor in 1888 and won the position by the largest plurality to that time in Kansas; he won the majority vote in all but two counties. He defeated his Republican predecessor John A. Martin, who was tremendously popular. Humphrey was reelected to a second term in 1890.
Following his term as governor, Humphrey returned to the practice of law. In 1892, he ran unsuccessfully for the U.S. Congress. Humphrey died at Independence on September 12, 1915 and is buried in Mount Hope Cemetery.