Captain Spier Spencer (died November 7, 1811) lead a company of mounted riflemen at the Battle of Tippecanoe.
Spier Spencer married Elizabeth Polk, daughter of Indian fighter Capt. Charles Polk, in Bardstown, Nelson Co., Kentucky on January 18, 1793. The Spencers moved from Kentucky to Vincennes, Indiana. In 1809 Spencer was, who appointed by Governor William Henry Harrison to be the first sheriff of Harrison County, Indiana, moved to Corydon and served until his death.
He and his wife operated "The Green Leaf Tavern," out of their large log house on Oak Street. His friend General William Henry Harrison and Lt. Governor Ratliffe Boone stayed there when they came on official business.
When tensions grew high between the settlers and the Native Americans, Spencer organized the Harrison County Militia known as the "Yellow Jackets" because of the color of their uniforms, for a campaign against them. The Battle of Tippecanoe on November 7, 1811 ended with Captain Spencer being seriously wounded during the battle. He was shot in the head and when he was being carried off the field he was killed by a second shot. Spencer's horse and sword were brought back from the battle and were returned to his widow.
Captain Spenser's bravery and the heroics of his men were lauded by General Harrison. In 1818, Captain Spencer's exploits were remembered by naming Spencer County, Indiana after him and again in Kentucky in 1824.
His widow continued operating The Green Leaf Tavern. She eventually married William Boone and changed the name of the tavern to "Billy Boone Tavern," however, the couple divorced in late 1829.