The Jack Thomas House, at 108 E. Main St. in Leitchfield, Kentucky was built in 1810. It was listed on the National Register of Historic Places in 1976. It has been known as the oldest brick house in Leitchfield, on basis of its original one-story brick section which later served as a rear ell off the main block, built later. The main block is a two-story five-bay brick section, with its front door and window above having originally been in Palladian window format. It has also been known as The Gardner Place.