Lee's Summit is a city located within the counties of Jackson (primarily) and Cass in the U.S. state of Missouri. As of the 2010 census its population was about 91,364, making it the sixth-largest city in both the state and in the Kansas City Metropolitan Area.
Founded as the "Town of Strother", by William B. Howard for his wife, Maria D. Strother (daughter of William D. Strother formerly of Bardstown, Kentucky). Howard came to Jackson County in 1842 from Kentucky, married Maria in 1844, and by 1850 he and Maria had 833 acres (3.37 km2) and a homestead five miles (8 km) north of town. There was also another town called Strother. He was arrested for being a Confederate in October 1862, near the beginning of the Civil War, and after being paroled he took his family back to Kentucky for the duration of the war. After the war ended he returned and, knowing that the Missouri Pacific Railroad was surveying a route in the area, platted the town with 70 acres (280,000 m2) in the fall of 1865 as the town of Strother.
In 1865 the town of Strother changed its name for early settler Dr. Pleasant John Graves Lea, who moved to Jackson County in 1849, from Bradley County, Tennessee. Lea was listed as the postmaster of Big Cedar in the 1855 United States Official Postal Guide. Dr. Lea was killed in August 1862 by Kansas Jayhawkers (or Redlegs).
When the surveyors for the Missouri Pacific Railroad came through, the local people and the railroad wanted to name the town in Dr.