constructed in 1867. It was replaced twice, in 1884 and in 1908. As the third courthouse to stand on the site, the present structure houses the Polk County Historical Museum and Genealogical Library. After the Civil War, some 400 Confederate veterans settled here with families before the end of the century. Post-Reconstruction era to World War II In the post-Reconstruction period, black railway workers were among the first African Americans to settle in Polk County, in 1883 south of Lake Wire. The following year they founded St. John's Baptist Church, which also served as the first school for freedmen's children. Other workers arrived for jobs in the phosphate industry. This area became the center of a predominately African-American community later known as Moorehead, after Rev. H.K. Moorehead, called to St. John's in 1906. The community developed its own businesses, professional class, and cultural institutions. Its students had to go to other cities for high school until 1928, when the first upper school to serve blacks was established here. White violence rose against blacks in the late 19th century in a regionwide effort to establish and maintain white supremacy as Southern states disenfranchised most blacks and imposed Jim Crow. Whites lynched 20 African Americans in Polk County from 1895 to 1921; Three black men, whose names were not recorded, were murdered in a mass lynching on May 25, 1895, accused of rape. While others were killed for alleged crimes (never proven), one black man was lynched for supposedly insulting a white woman. The man, Henry Scott was a porter on a train from Lakeland to Bartow. While he was preparing a berth for one woman on May 20, 1920, another white woman became angry that he made her wait. She sent a telegram to the next station where he was met by a sheriff, arrested, and then turned over to a mob that shot him 40-50 times. Columbia County also had 20 such lynching murders; these two counties had the second-highest total of lynchings of African Americans of any county in the state. In the first few decades of the 1900s, thousands of acres of land around Bartow were purchased by the phosphate industry. The county seat became the hub of the largest phosphate industry in the United States, attracting both immigrants and African-American and white workers from rural areas. Polk County was the leading citrus county in the United States