Named for the free school of Trentham, Staffordshire, England, where Reverend Thomas Craddock had taught, this estate became part of his wife’s dowry when he married the daughter of High Sheriff John Risteau. They built a house in 1746, and in 1747 he opened a boy’s boarding school there. The original house, damaged by fire in 1857, was rebuilt in 1860. The octagonal bathhouse dates from 1747.