William Tucker was born into slavery in February 1833 in Albemarle County, Virginia. His owner, John Coles Carter, migrated to Missouri in 1852 and owned 126 slaves on multiple plantations by 1860. Tucker worked as a farmer on Carter's plantation in Pike County. He married Fanny Dillard there on December 20, 1855, and they had two children together: Archie, born September 12, 1857; and Martin, born March 8, 1860.
Tucker enlisted in the Union army as a substitute on August 30, 1864, in Bowling Green, Missouri. He mustered in as a private in Company F of the 18th USCT Infantry Regiment soon after in Benton Barracks in St. Louis. His enlistment records describe him as 5 feet, 9 inches tall, with black hair, black eyes, and a black complexion. Tucker served mostly in Tennessee, taking part in the Battle of Nashville in December 1864 and pursuing Confederate General John Bell Hood to the Tennessee River. Tucker was admitted to the hospital in Chattanooga, Tennessee, in May 1865 and died there of "inflammation of bowels" on July 20. After his death, his family lived in Pike County, Missouri, and Adams County, Illinois. Fanny applied for a pension on April 13, 1866, and on January 22, 1874, the government granted her $8 a month plus $2 for each of her two minor children.