Thomas Leiper Kane (January 27, 1822 – December 26, 1883) was an American lawyer, abolitionist, philanthropist, and Union Army officer best known as a lifelong non-Mormon friend, advocate, and mediator for members of The Church of Jesus Christ of Latter-day Saints (often called Mormons). He was not a Mormon convert or a Utah settler; he remained outside the faith while providing crucial political, diplomatic, and public-relations support during key crises in the church’s history. Kane County, Utah, and the early Iowa settlement of Kanesville (near present-day Council Bluffs) were named in his honor.
Early Life and Background
Kane was born in Philadelphia, Pennsylvania, the second son of John Kintzing Kane (a prominent federal judge and politician) and Jane Duval Leiper Kane. He came from a well-connected family of Irish and Scottish descent. After education in Philadelphia and some study in England, he read law under his father and was admitted to the Pennsylvania bar in 1846. He briefly served as a clerk in his father’s court but resigned around 1850 over moral opposition to the Fugitive Slave Act. He was active in reform causes, including abolition (with involvement in the Underground Railroad), opposition to capital punishment, prison reform, women’s rights, and educational initiatives.
Introduction to the Latter-day Saints (1846)
Kane first encountered the Saints in May 1846 in Philadelphia, where he attended a conference organized by Jesse C. Little, the church’s eastern representative. Learning of the forced expulsion of the Mormons from Nauvoo, Illinois, and their difficult westward migration, Kane used his family’s political connections to help. He met with President James K. Polk and other officials, helping arrange the enlistment of the Mormon Battalion (about 500 volunteers) for the Mexican-American War. The battalion’s pay provided vital funds for the impoverished refugees.
Kane traveled west to the Mormon camps along the Missouri River in Iowa Territory. He assisted with recruitment, visited scattered settlements, and publicly defended the Saints against hostile reports. Impressed by their loyalty and suffering, he became a committed advocate. In recognition, the Saints renamed one of their Iowa settlements Kane (later Kanesville). In September 1846, Patriarch John Smith gave Kane a patriarchal blessing that he valued highly throughout his life.
Advocacy and the Utah War
Throughout the 1850s Kane worked to improve the public image of the Saints and secure favorable federal treatment. In 1850 he delivered an influential lecture, The Mormons, before the Historical Society of Pennsylvania, describing their history and the desolation of abandoned Nauvoo. His influence helped secure Brigham Young’s appointment as the first governor of Utah Territory under President Millard Fillmore. Kane declined an offer to serve as territorial governor himself, preferring that Young hold the post. He also supported efforts toward Utah statehood.
His most famous service came during the Utah War (1857–1858). Amid exaggerated reports of Mormon rebellion, President James Buchanan ordered a large U.S. Army force (Johnston’s Army) to Utah. Kane volunteered as an unofficial mediator, traveling under the alias “Dr. Osborne” via a long southern route (through Panama and California) to reach Salt Lake City in early 1858. He negotiated with Brigham Young and the new federally appointed governor, Alfred Cumming, helping persuade Young to accept Cumming and avoid armed resistance. The peaceful resolution averted bloodshed and is often credited in large part to Kane’s diplomacy.
Civil War Service and Later Life
At the outbreak of the Civil War, Kane organized and led the 1st Pennsylvania Rifle Regiment (the “Bucktails”), a noted sharpshooter unit. He rose to the rank of brigadier general of volunteers and received a brevet promotion to major general for gallantry at the Battle of Gettysburg (1863). Wounds and illness forced his resignation. After the war he settled in northwestern Pennsylvania, where he helped found the town of Kane and engaged in land development, railroads, oil, and civic affairs. He continued corresponding with Brigham Young and other church leaders, offering counsel on political and legal matters.
In the winter of 1872–1873, in poor health, Kane, his wife Elizabeth Dennistoun Wood Kane, and two of their sons visited Utah at Brigham Young’s invitation. They traveled with Young to St. George in southern Utah, where the milder climate improved Kane’s health. Elizabeth later published Twelve Mormon Homes (1874), a valuable firsthand account of Mormon domestic life. Kane returned briefly to Utah in 1877 after Young’s death.
Personal Life and Death
Kane married Elizabeth Dennistoun Wood in 1853; they had several children. Though raised in a Presbyterian family, he did not formally join any church. He remained a steadfast friend of the Saints until the end. He died of pneumonia in Philadelphia on December 26, 1883 (some sources list the 27th), after caring for an injured son. Among his last concerns were messages of affection for his “Mormon friends.”
Legacy
Kane is remembered in Mormon history as one of the most important non-member allies of the 19th century—an “outrider for Zion.” His mediation during the Utah War, defense of religious liberty, and long friendship with Brigham Young left a lasting mark. A statue of him stands in the Utah State Capitol, and the LDS Church maintains a memorial chapel in Kane, Pennsylvania. His papers and correspondence remain important sources for historians of the American West and the Latter-day Saint movement.