Contains newsletters, membership materials, member lists, correspondence, and a booklet regarding the Municipal Art Society of New York. Pahlmann was elected a member of the Municipal Art Society in 1949. He served the society as a member of its Committee on Interior Design and as chairman of its Awards Committee.

Contains membership cards, event fliers, correspondence, and notes regarding the Museum of the City of New York. William Pahlmann Associates was a corporate member of the Museum of the City of New York.

Contains membership cards, brochures, correspondence, and membership information regarding the Museum of Modern Art and the Metropolitan Museum of Art, both of which are located in New York City. Pahlmann was a member of both of these museums.

Contains a flier, a letter, a certificate of membership, and a brochure regarding The National Geographic Society, based in Washington, D.C. Pahlmann was elected a member of The National Geographic Society in 1953.

Contains newsletters, annual reports, property listings, and correspondence regarding England's National Trust for Places of Historic Interest or Natural Beauty.

Contains brochures, newsletters, correspondence, and magazine clippings regarding the New York Shakespeare Festival. Pahlmann was a patron of the New York Shakespeare Festival, which is an annual event held in New York City's Central Park.

Contains correspondence, filers and receipts regarding membership in the Park Association of New York City. Pahlmann was a member of the Park Association of New York City during the 1960s.

Contains correspondence, fliers, course catalogues, and fund raising materials for the Parsons School of Design. Some of the materials in this folder concern the activities of the 1968 Annual Giving Appeal Committee, on which Pahlmann served.

Contains Pahlmann's correspondence with the Parsons School of Design concerning his appearances as a guest lecturer, service on various alumni committees, and his opinions on the school and its interior design department during the 1950s and 1960s.

Contains brochures and a letter regarding membership in Preview Circle, a theatre subscription club. Pahlmann was a member of Preview Circle in 1966-1967.

Contains correspondence, membership information, and receipts regarding the Raffles Club in New York City. Pahlmann was a member of the Raffles Club during the 1960s and 1970s.

Contains correspondence and a receipt regarding Pahlmann's application for membership in the Rockefeller Center Luncheon Club and his membership in The 60 East Club, both located in New York City.

Contains correspondence and notes regarding Pahlmann's service on a "Celebrity Committee" in support of Richard Nixon and Henry Cabot Lodge during the 1960 Presidential Election.

Contains correspondence and an advertisement proof sheet. These items regard Pahlmann's participation with the "Arts and Entertainment Committee for Rockefeller", which was a committee of people who worked in the visual and performing arts who supported Nelson Rockefeller's 1962 campaign for governor of New York.

Contains correspondence soliciting Pahlmann's support for the Skowhegan School of Painting and Sculpture, located in New York City and Skowhegan, Maine.

Contains dues receipts, by-laws, pay scale sheet, and a reprint of a magazine article regarding the Screen Actor's Guild. Pahlmann was a member of the Screen Actors in 1957-1958. Also includes notes about the Scenic Artists Local Union in New York City.

Contains newspaper clippings and correspondence regarding the Broadway musical "Shinbone Alley". Pahlmann was an investor in this theatrical production.

Contains correspondence, notes, and membership information regarding the Waccabuc Country Club in Waccabuc, New York. Pahlmann was a member of the Waccabuc Country Club from 1961-1972.

Contains membership cards, correspondence, guest tickets and a brochure regarding The Vizcayans, which was a group of people who supported the Vizcaya Museum and Gardens in Miami, Florida. The Vizcaya Museum and Gardens is the former villa and estate of James Deering. Pahlmann was a member of The Vizcayans during the 1950s and 1960s.

Contains a membership card and a business discount booklet for the American Society of Jalisco, based in Guadalajara, Mexico. Pahlmann was a member of the American Society of Jalisco during the 1970s.