The Thomas L. Morgan Real Estate Development Records (1971-1997) relate to commercial and residential real estate development, primarily in Los Angeles, California and Las Vegas and Henderson, Nevada. Materials consist of Hughes Development/Summa Corporation projects including the Hughes Center and Playa Vista in Los Angeles, California, and Summerlin and the Hughes Center in Las Vegas, Nevada. There are also extensive records related to the financing and development of Green Valley Ranch and Lake Las Vegas, projects Morgan helped develop through his private company, Thomas Morgan & Associates. Also represented are a number of casino-related projects for the Sands, the Frontier, the Landmark, and the Westgate hotel-casinos. Additional materials include general business records, handwritten notes and memoranda, and correspondence; Summa financial papers and forecasts; books on finance and a 1982 Desert Inn Master Plan architectural portfolio.