Thaddeus Stevens. Stevens' name was on the deed, but Anna Mary owned it. He bought it in an auction for $16.00. He held it in trust for he, and they remained co-owners until his death in 1868. She died in 1873.
The widow Anna Mary Thompson's house was owned by the Radical Republican Pennsylvania Representative Thaddeus Stevens.
In 1833, Michael Clarkson, an enterprising Gettysburg businessman, purchased a tract of land along the Chambersburg Pike and built the stone house that 30 years later would become the headquarters of Gen. Robert E. Lee. Clarkson was a prominent figure in Gettysburg, and a close friend of Thaddeus Stevens, a significant player in early Gettysburg industry and politics. Joshua Thompson, his wife Mary, and their eight children became tenants of the stone house. Joshua was a habitual drunk who left Gettysburg and died sometime before 1850, leaving Mary to raise their children. When Clarkson ran into financial trouble and his properties were put up for auction in 1846, Stevens acquired the house in which Mary Thompson lived . It remained in his possession until his death in 1868. Stevens had made a contract with Joshua Thompson before he died, and he purchased the house to ensure the welfare of Mary and her children.
Thaddeus Stevens (1792-1868) purchased the property, built circa 1833, for sixteen dollars in 1846 in trust for Ms. Thompson. She lived there until her death in 1873.
However, since the question did not specify that it was asking about who held the house in trust during a specific time period in the 19th century, I am also accepting answers that gave the names of individuals or groups who have held it in trust during the 20th and 21st centuries.