Dallas Architecture Forum and Preservation Dallas present a tour of Clint Murchison, Sr.’s “Big House,” a 1930’s residence designed by local architect Anton Korn, on Saturday, Nov. 30 2-4 p.m. The home is located at 23 Ash Bluff Lane. Architect J. Wilson Fuqua and landscape architect Warren Johnson will make remarks at 3 p.m. The Big House was the site of many historical events, both of state and national import.