The Lydia Hamilton Smith House (1850s) on Vine Street in downtown Lancaster is part of the Stevens-Smith Historical Site that integrated into the Lancaster County Convention Center. Lydia Hamilton Smith (1815 – 1884) became powerful Pennsylvania Congressman Thaddeus Stevens’ housekeeper in 1847. For 25 years, she managed his home and businesses and also accompanied him to Washington, D.C. to run his household and to serve as hostess. Their partnership afforded her the opportunity to gain the skills and social contacts that helped her later become a successful businesswoman. The Historic Preservation Trust led the initiative to save and restore the Lydia Hamilton Smith house.