C.L. Huston House was where Charles Lukens Huston and Annie Stewart McGregor Huston lived while he was Vice President in charge of Operations. He designed the 206" Mill.

Located just north of Terracina, the house was designed by Cope and Stewardson (1895-1896) in a plainer style than Graystone Mansion. Its demolition in 1982 removed an integral building of the Lukens National Historic District.