The Gaines-Oliphint House has been acknowledged by the Texas Historical Commission as the oldest standing log structure in the state. The building is a double pen planked log story and a half building with a dog trot. Built around 1815 by slave labor, research shows that the Gaines-Oliphint House stands on ground granted to James T. Gaines in 1830, one of the oldest Anglo grants in the state of Texas. Gaines lived in the home at Pendleton from 1819 to 1843. Built of longleaf pine logs which were shaped into planks with an adze and broadax, the house was completely stacked before the windows and doors were cut into the walls. Archeological findings indicate the bricks for the chimney were manufactured on the site from native red clay. The Gaines-Oliphint house provided lodging for Sam Houston, Davy Crockett, and Stephen F. Austin, among others.
Site for the Pioneer Trade Days held the Third Saturday of April.