Henry Gassaway Davis House, also known as the Knights of Pythias Lafayette Lodge Number 3 and Calanthe Temple #8 Pythian Sisters, is a historic home located at Piedmont, Mineral County, West Virginia. It was built in 1871, for U.S. Senator and Vice Presidential nominee Henry G. Davis (1823-1916). It is a three bay, four story Second Empire style brick duplex. It has a simple mansard roof and 12 gabled pedimented dormer windows on the concave slopes. The front façade features dual stone and slate stairs, ascending to two centered paired six by nine foot framed one-story entry porches.