SERIES I: Clippings (1929-1930) contains newspaper and magazine stories from around the country relating to the hobby of glider flying, which were collected and maintained during the late months of 1929 and the early months of 1930 by Gliders, Inc.

SERIES II: Correspondence (1928-1930) appears to have some gaps. For instance, there is almost no presidential correspondence past February 1929. Between February and June 1929, there is almost no correspondence of any sort. None of the letters to and from Mark Kearney have survived in this collection. Of all the company's correspondents, Donald Walker of the National Glider Association was by far the most frequent. All three offices corresponded with Walker in order to share customer information and coordinate events. The president's correspondence file refers to the creation of Gliders, Inc. and the formation of the relationship with the National Glider Association. In addition, William Scripps attempted to form an early alliance with the American Motorless Aviation Company. The operations manager, Frank Blunk, corresponded with Walker concerning the Second National Glider Conference and the Detroit Glider Carnival. The file of the chief demonstrator, John Pratt, documents interaction with customers, concerning issues such as safety and the selection of terrain and weather conditions.

SERIES III: Miscellaneous Reports (1928-1930) contains a file of reports and meeting minutes from the National Glider Association, including reports on the Second National Glider Conference in Cleveland and the Detroit Glider Carnival. Also, this file includes a copy of the suggested by-laws for local gliding clubs. Another file contains several reports on gliding. The unsigned and undated reports concern topics such as the history of gliding in Germany and America, the technical specifications for constructing a glider, and a detailed report on the various aspects of flying a glider safely and effectively. One of these reports suggests that Gliders, Inc. trained over 800 glider pilots, but little direct documentation of this function has survived. The "Salesman's Packet" includes order forms, daily report forms, and a set of specifications for the "Detroit Gull," one of the company's biggest selling gliders. The speeches file derives primarily from the First Intercollegiate Aviation Conference at Yale, held in October 1928. Three of these speeches were written by Frank Blunk. Other speeches were written on aviation topics other than gliding by individuals unconnected to Gliders, Inc.

SERIES IV: Publications (undated) contains informational and publicity brochures from various aviation companies and related organizations. The Detroit Aircraft file has brochures from several of that company's main divisions, such as Lockheed-Vega and Ryan Aircraft. The Gliders, Inc. file contains a few of the company's brochures and fliers. The National Glider Association material includes two informational pamphlets entitled "Wings for Young American" and "Soaring Flight". Miscellaneous publications include a Detroit Aviation Directory for 1929, and brochures from various gliding and aviation related organizations. Also included within this series are various magazines, all associated with aeronautics and flying.

SERIES V: Photographs (undated) are mostly unidentified and undated. Primarily, these pictures were taken at glider flights and demonstrations. There are also three photos showing the construction of gliders in the factory.