Greenslade Drug Store was built in 1891 by R.C. Dansby of iron, masonry, and wood. It was sold to Smith E. Greenslade in 1919 and remains in the Greenslade family. Exposed iron beams support the roof, and the windows have upper and side panels that fold for ventilation. The building features modified Spanish architecture and was recorded as a Texas Historic Landmark in 1968.