John Murchison, a Republic of Texas congressman, was born in 1807 or 1809. He lived for a while in Wetumpka, Alabama, where he joined the Masons. Shortly before the Texas Revolution he settled in San Augustine, Texas. He served in the Texas army from April 24 to July 24, 1836. In October 1838, during the Córdova Rebellion, he participated in the battle of Kickapoo, in which Gen. Thomas J. Rusk and some 700 men were attacked by a group of about 900 Indians and Mexicans. The attackers were repulsed after an hour; Murchison was severely wounded but eventually recovered.
In 1839 he moved to La Grange in Fayette County, where he was elected justice of the peace in January 1840. In 1840–4l he represented Fayette County in the Fifth Congress of the Republic of Texas. Murchison was Masonic grand steward in 1849 and grand standard bearer in 1850. In 1847 he helped to organize the Lafayette Lodge in La Grange. In the spring of 1849 he organized a company of about 100 men, including his son, to go to the gold fields in California. He died in an accident en route on July 28, 1849, some twelve days' travel east of Tucson, Arizona.