The Meindert Pillie Boeing Collection is comprised of textual and visual materials collected and used by Meindert Pillie over the course of his 40-year career as a Mechanic and Hydraulic Mockup Technician with the Boeing Company. The collection has been divided into two series: Professional materials and Aircraft documentation. Both series have been arranged chronologically.

The first series, Professional materials, provides a glimpse into Pillie's work with primarily textual materials. Among the materials are an aircraft exam book, correspondence, and two notebooks that focus on the Boeing B-52.

Additional materials related to Pillie's time at Boeing pertain to his 25-year service award and include a certificate and related correspondence from the International Association of Machinists and Aerospace Workers as well as six black-and-white photographs that depict Pillie and Boeing executives during his 25-year pin presentation. Two of the prints have accompanying negatives.

Also present are 17 8x10-inch photographs of Boeing employees, including Pillie, circa 1950s-1972. Nearly all of the prints depict a group of employees, likely part of a particular team and often in an office or conference room setting. Two prints depict Pillie in a cockpit with two other unidentified males. One image depicts a wall of a control room for the Boeing Model 767 project.

Additional photographs are present, but are likely personal. The prints depict a young boy and a young woman with a toddler, possibly Pillie's wife and his children. There is also a photographic postcard of Moses Lake, Washington and a print that depicts an aircraft crash in water. The prints are a mix of black-and-white and color. Some are vintage prints, although most appear to be modern reprints. Contextual information such as names, dates, or locations are not present on the vast majority of the photographs.

A small assortment of printed ephemera is also present in this series. Materials include Kolonel Keds and his exciting Bell rocket belt comic, clippings, and a November 1951 copy of Dutch-language magazine Panorama.

The second series, Aircraft documentation is focuses on specific aircraft technical information. The bulk of the series is a large number of assorted diagrams, notes, and technical drawings, several of which are noted as "Pillie's copy." Many of the technical diagrams and drawings relate to the Boeing Model 727 and 737. Examples include "Hydraulic diagram, cargo door system" and "Marking Installation - decorative, Exterior." Additional aircraft include, but are not limited to, the Boeing B-29 and B-50. A list of drawings is available upon request. Additional materials include forms, charts, lists, and tables for Boeing aircraft, including the B-47, B-52, and YC-97, among others.