Squire Maugridge Boone Jr., Squire Boone Jr., or Squire Boone (October 5, 1744 – August 5, 1815) was an American frontiersman, longhunter, soldier, city planner, politician, land locator, judge, politician, gunsmith, miller, and brother of Daniel Boone. In 1780, he founded the first settlement in Shelby County. The tenth of eleven children, Squire Boone was born to Squire Boone Sr. and his wife Sarah (Morgan) Boone in Berks County, Pennsylvania at the Daniel Boone Homestead. Although overshadowed by his famous brother, Squire Boone was well known in his day.
From 1767 to 1771, he went on several long hunts, with his brother, Daniel, into the Kentucky wilderness. In 1775, Richard Henderson, a prominent judge from North Carolina, hired Daniel Boone to blaze what became known as the Wilderness Road, which went through the Cumberland Gap and into central Kentucky. Squire Boone accompanied his brother and 30 others, assisting in the settlement of Boone's Station (present-day Boonesborough).
In Spring 1779, after the siege of Boonesborough, where Squire had a rifle ball cut out of his shoulder, he moved his family to the settlement at the Falls of the Ohio that would become Louisville. In 1780, he brought 13 families to "Painted Stone", a tract of land in Shelby County, and established Squire Boone's Station there, the first permanent settlement in the county. He was wounded in April 1781 when Indians attacked the fort; complications of the gunshot injury would result in his right arm being an inch and a half shorter than his left.
On September 13, 1781, the settlers abandoned the undermanned station and headed for nearby Linn's Station. Since Squire Boone was still too weak from his injury to make the trip, he stayed behind at the station with his family and one other. The fleeing settlers were attacked in what became known as the Long Run Massacre.
In 1782, he began acting as a land locator for wealthy land speculators who did not want to personally risk living on the frontier. However, due to financial losses in this line of work, he lost his own property, including the station, in 1786 and was forced to settle elsewhere in the county. He served two terms in the Virginia legislature in 1789 and 1790 and was the primary sponsor of a bill to charter the town of Louisville.
Squire Boone died of congestive heart failure, at age 70, on August 5, 1815 and was buried in a cave on his property. His remains were left undisturbed for many years, but in the mid-20th century relic hunters began taking parts of his coffin and even some of his bones. In 1973, his remains were removed from a small pit cave on the property and placed into a new coffin built by employees of the cave and placed inside the commercial cave, where it resides today, at the end of the tour of Squire Boone Caverns.