The Historic Mobile Preservation Society is one of the oldest preservation groups in the United States. It was established in 1935, for the research and preservation of records, books, documents, and memorabilia relating to the history and heritage of Mobile and the surrounding areas. The society manages and operates the Oakleigh Historic Complex, which houses the Mobile's Official Period House Museum, Cox-Deasy Cottage Museum and Mardi Gras Cottage Museum. The society’s study and research activities are concentrated in the Minnie Mitchell Archives Building. The society also houses the George B. Rogers architectural library, which treasures a four-volume collection that includes books on topics ranging from landscape architecture to hardware catalogs, and personal photograph albums. The society is affiliated with the National Trust for Historic Preservation and the Alabama Preservation Alliance. The society can be reached at 300 Oakleigh Place, Mobile.