Soap traces its history all the way back to the Babylonians in 2800 BC. However, bar soap only dates back to the late eighteenth century. The use of bar soap became the norm in the mid-nineteenth century. By this time soap could be mass produced and mass marketed. Many of the large bar soap companies were established during this time. This collection consists of 155 hospitality soap wrappers that have been flattened. The soap wrappers generally contain the name of the hotel, city and state, as well as a logo or graphic of some kind. Most wrappers include the brand name and product name, though a few do not have any information about the soap listed on the wrapper. All of the hotels are in the United States, not all of the states are represented in the collection. This collection would be useful for those researching package design, logos, or the soap industry. Potentially the collection also indicates relationships between specific hotel companies and their personal hygiene vendors.

Hotel du Pont is a historic hotel located in Wilmington, Delaware that opened in 1913. The Hotel du Pont Company was organized on July 2, 1912, for the purpose of operating a hotel within the Du Pont Building in downtown Wilmington. The Hotel du Pont historical files were collected to assist in the preparation of an Arcadia book by Joanna L. Arat, which was issued to mark the 100th anniversary of the hotel, and include administrative records, marketing and sales information, food services and material related to other special events.

Hotel du Pont is a historic hotel located in Wilmington, Delaware, that opened in 1913. The Hotel du Pont Company was organized on July 2, 1912, for the purpose of operating a hotel within the Du Pont Building in downtown Wilmington. The Hotel du Pont miscellany represents objects, including former lobby decorations, removed prior to a proposed sale of the building. Items include menus, advertisements, check, and jacket pins.

Hotel du Pont is a historic hotel located in Wilmington, Delaware that opened in 1913. This collection of Hotel du Pont materials represents publicity materials covering the renovations within the hotel and some of the more special events held there primarily dating from 1980 to 1992.

The Hotel Varadero Internacional, built in 1950, was next to Xanadu, Irenée du Pont's (1876-1963) estate that was built in Cuba around 1930. The postcard gives a black and white photographic view of the entrance to the driveway to the Hotel Varadero, with the hotel in the background.

John Margolies (1940-2016) was an American photographer and architecture critic with a fondness for novelty architecture. This is his personal collection of travel ephemera that he collected from across North America. These materials primarily cover the United States’ most popular tourist spots with an emphasis on the Northeast region of the United States.

John Margolies (1940-2016) was an American photographer and architecture critic with a fondness for novelty architecture. This is his personal collection of postcards and photographs from across North America. These materials primarily cover the United States’ most popular tourist spots along with various businesses. There is heavy coverage of the Northeast region of the United States, where Margolies lived most of his life. Postcards are primarily from the first half of the twentieth century, and photographs primarily span circa 1890-1920s. Postcards cover a wide range of subjects from famous attractions to local businesses, and photographs are almost entirely local businesses, many being interior views of family owned businesses with their owners. Few objects are contained within the collection, including signs from local businesses and a scrapbook from the honeymoon of an unidentified couple. A small amount of transparencies and negatives conclude the collection, which were used for the planning of some of Margolies books. It is important to note that this collection does not contain John Margolies original photography, except for the few postcards that advertise his exhibits.

The Lake Mohonk Mountain House was a noted summer resort hotel located on Lake Mohonk in the Shawangunk Mountains of Ulster County, northwest of New York City. The collection consists of tear sheets from the trade press, advertisements, trade literature, trade catalogs and other publications collected by Daniel Smiley (1796-1878), former manager of the Lake Mohonk Mountain House, in the course of planning and executing new projects, maintaining the building and grounds, and purchasing new furnishings and equipments. This material is accompanied by fairly routine letters of request and replies from sales representatives. There are also some copies of hotel menus and programmes for social events.

Local Maryland historian and private collector Larry R. Paul (b. 1935) has had an extensive career as an exhibit designer, cataloger, and antiques dealer. The collection consists of a database, created by Larry R. Paul, of over 20,000 hotels operating in the United States during the eighteenth century up to the year 2000, although it includes some details on more recent changes to buildings.