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All American Engineering Company was an aeronautical engineering and research firm which was incorporated on October 31, 1952. The company was originally a division of All American Aviation, Inc. This small collection of photographs depicts air pick-up testing, airplanes, equipment, and personnel.

All American Engineering Company was an aeronautical engineering and research firm which was incorporated on October 31, 1952. The company was originally a division of All American Aviation, Inc. This collection consists primarily of films. There is a small amount of photographs which corresponds directly to the film material. The collection is organized into two series: Films and Photographs, both series are arranged alphabetically. Dating from 1937 to 1984, the Films series documents the company’s innovations in the aviation industry, including pickup and recovery systems, catapults and arresting gear. The photographs document different design projects and tests; most of this research was related to the aviation industry. There are photographs of the facilities at the DuPont Airport on Centre Road near Greenville, Delaware, and the Georgetown, Delaware, test plant. Richard du Pont and other personnel appear in some of the images.

The engineering and research unit of All American Aviation, once the principal feeder airline for the mid-Atlantic region, became the All American Engineering Company in 1953. Their records document the early evolution of All American Aviation, the development of its system of air pick-up service, and its use in postal and military applications.

All American Engineering Company was an aeronautical engineering and research firm that was incorporated on October 31, 1952. The records consist of scrapbooks of newspaper clippings and news releases that document the development, testing, and applications of the company's products.

Horatio Allen (1802-1889) was a noted civil engineer and inventor, who worked with the Delaware & Hudson Canal Company, the South Carolina Canal and Railroad Company, the Croton Aqueduct, and the New York & Erie Railroad. The bulk of his the papers is personal correspondence (1818-1864), and biographical materials collected by his family. Also included is a small collection of Allen's business papers, particularly concerning his work on the New York & Erie Railroad.

Carl George Dietsch (1900-1978) was an electrical engineer who specialized in shortwave radio transmitters. He supervised the construction of radio stations for the Radio Corporation of America (RCA) and the National Broadcasting Company (NBC) from the 1930s to the 1960s, including locations in Brazil, Argentina, the Philippines, Japan, and Morocco. This collection consists of materials relating to Dietsch’s projects for RCA and NBC, particularly concerning the construction of a radio station in Tangier, Morocco, as well as the World War II Voice of America project in Dixon, California. The bulk of the collection material spans from the 1920s to the 1960s, with some later material from Dietsch’s time as a private engineering consultant. The collection includes correspondence, patent material, trade catalogs and publications, manuscript material, photographs and negatives, blueprints, diazotypes, audiovisual material, and drafting tools. This collection would be useful to researchers interested in shortwave radio station construction.

Clarence Ferrier (1908-1990) was a photographer for more than twenty-seven years at All American Engineering Co., an aeronautical engineering and research firm incorporated in Georgetown, Delaware, on October 31, 1952. This small colletion of slides depicts the facility, hanger, aircraft, and employees.

In 1918, the company opened an additional plant in Racine, Wisconsin to increase the production of smokeless powder to meet the growing demand in order to support the war effort. This panoramic photograph shows a group of engineers outside of the plant.

A collection of random publications, photographs, and objects associated with DuPont's Engineering Physics Laboratory. A number of the items appear to be associated with Paul M. Tannenbaum, once Senior Research Physicist at the Laboratory.

The Leeds & Northrup Company thrived throughout the twentieth century as a premier manufacturer of precision measuring and scientific equipment. The bulk of the Leeds & Northrup Electrical Power Systems records come from three employees, whose work at Leeds & Northrup spanned from 1928-1981: W. Spencer Bloor (1918-2002), Nathan Cohn (1907-1989), and S. Byron Morehouse. All worked within the Instrumentation and Controls for Electric Power Application Division. The records include papers, presentations, correspondence, memos, blueprints, and other materials relating to the development of a national electrical power grid in the United States. Technological and commercial developments in automatic electric power generation control, stabilization of energy load across regions, and problems of interconnection feature prominently in these materials.

Elmer A. Sperry (1860-1930) was an electrical engineer who established the Electric Light, Motor, and Car Brake Company in 1883 and then founded the Sperry Electric Mining Machine Company in 1886. After selling his patents to General Electric, he went to work for the company as a consultant. This collection includes original materials, as well as copy work from other sources and images which show Sperry's inventions; there is some ephemera, family photos, employees, and views of the Sperry Company's Brooklyn drafting rooms.

Errett McLeod Graham (1877-1974) was a civil engineer for various railroads. He was married to Helena "Lena" Washburn Graham (1881-1970) for nearly sixty-six years. Helena Graham was a homemaker to the couple's three children. The Grahams spent the early years of their marriage in remote railroad construction camps and small towns in Tennessee and West Virginia before settling in Rensselaer, Indiana. This item is a single-volume diary handwritten by both Errett and Lena Graham in 1910 while living in Tunnelton, West Virginia, were Errett was working for the Baltimore & Ohio Railway Company. The diary would be of interest to those researching women's studies, railroad history, and civil engineering.

Francis Victor du Pont (1894-1962) was a civil engineer and political figure in Delaware and Maryland. This collection combines papers and memorabilia of Francis Victor du Pont and those of his parents and ancestors.

Frank Elwin Ebersole (1871-1933) was a contract electrical engineer who installed automatic telephone systems throughout the United States during the early twentieth century. Ebersole was the proprietor of the Ebersole Construction Company; president of the Independent Telephone Company; and the general manager of the Northeastern Telephone Company, Lincoln Telephone Company, Evansville Telephone Company, Houston Home Telephone Company, and other related businesses. He engaged in the construction and installation of telephone services and support structures of each system, including their power plants. This small collection documents the business interests of an early telephone engineer and construction manager. The documents include telegrams and letters that provide detailed information on business relations, corporate financing, and equipment processing for installing early telephone service, as well as the challenges faced by suppliers of equipment used in said process.

Henry A. Janvier (1861-1952) was an engineer with the Ferracute Machine Company of Bridgeton, New Jersey, where he had begun work in 1877 as a sixteen-year-old apprentice. Sometime in 1896, Ferracute signed a contract with the Chinese government to build three mints there, two at Wuchang in Hopei Province and one in Chengtu in Szechwan. Janvier served as chief engineer for the project. This collection includes Janvier's letters to his family, in which he describes his 1897 trip to China.

James Gordon Ferguson (1900-1985) was an electrical engineer who worked at Bell Telephone Laboratories for forty-two years. He was the author of numerous technical papers and was one of the leads during the 1940s in developing the Number Five Crossbar Switching System (5XB switch), which brought telephone service to rural areas. This item is an unpublished memoir entitled "Me and My Bell System (As I Remember Us)," circa 1965. It details Ferguson's career and professional life.

From 1906 to the 1970s, the Honeywell corporation grew from specializing in thermostats and home heating into military engineering, cameras and computing. James Warren Scarlett (1937-2016) was a team leader and electrical engineer at Honeywell through the crucial 1970s period where they led the world in developing process control technology for industrial plants. His records illustrate the development of Honeywell's Industrial Process Control Division's TDC 2000 and TDC 3000 systems. The collection has particular strengths in materials documenting the design of the user interface, sometimes referred to as the man-machine-interface (MMI). Materials include reports, papers, presentation slides, books, correspondence, and business cards.

Joseph T. Richards (1845-1933) was a career civil engineer with the Pennsylvania Railroad Company who participated in several of their large construction projects in the first decade of the twentieth century. The records consist of the contents of a small portfolio of documents relating to the construction of Pennsylvania Station and its associated yards and terminals.

The Kaehni brothers, William "Bill" L. Kaehni (1895-1950) and Francis "Frank" J. Kaehni (1897-1986) were electronics engineers, inventors, and entrepreneurs. The brothers invented radio transmitters, navigational devices for airplanes and ships, transistorized car ignitions, and heat control systems. They also built and installed public address systems. This small collection primarily consists of the Kaehni brothers' class notes from courses taken at the Case School of Applied Science (now folded into Case Western Reserve University). The notes are most likely Bill Kaehni's, but could also be Frank Kaehni's, as they are mostly undated. Of significance is a bound biography written in 1998 by David C. Barnett using documents from the Kaehni family and firsthand accounts from their sister, Marie Kaehni, who provides her own memories in the afterword.

The Lawrance Engineering and Research Corporation manufactured auxiliary power plants for airplanes. The firm was founded in 1930 in Linden, New Jersey, by aviator Charles L. Lawrance (1882-1950). This small collection of blueprints shows auxiliary power plant equipment.

Levi C. Stang (1890-1962) was an electrical engineer and general manager of several electric companies throughout the Midwest. His scrapbook chronicles his career and employment as an electrical engineer through selected letters and correspondence, newspaper and other clippings, blueprints, and photographs.

This collection contains papers from Louis F. Moose from his early days as a student at the University of California, Berkeley, to his retirement from Bell Laboratories, Allentown, Pennsylvania, as an electrical engineer and department head. They date from 1928 with the bulk of the documents from 1942 to 1982 covering his work and activities at the Massachusetts Institute of Technology and Bell Laboratories.

Throughout his career, Mr. Moose was involved with the early research and development of magnetrons/microwave tubes used in radar for military use and for Bell Systems applications.

The papers document the lives and careers of three generations of the immediate and extended family that began with famed Civil War officer Montgomery C. Meigs (1816-1892). The most notable members include his son, engineer Montgomery Meigs (1847-1931) and granddaughter and author Cornelia Meigs (1884-1973). The materials are about equally divided between professional activities and domestic family concerns.

Walter D. Gernet (1878-1928) was a civil engineer who worked for the Public Works Department in Philadelphia for fifteen years. After losing his position in 1918, he spent his remaining ten years working various engineering jobs. This collection of Gernet's diaries chronicles his daily life and covers eight years from the end of World War I until 1925. The diaries offer a view of an average workingman's day-to-day activities in a large urban center. This collection of diaries would be of great interest to social historians, especially those focused on early twentieth-century life in the greater Philadelphia area. Its detail encompasses work, family life, and interactions between family members and friends in the wider community.

Wilhelm Melas (1869-1916) was an engineer and inventor who specialized in the design of furnaces and other industrial machines. He designed plant and foundry layouts, as well as developed materials for railroad stations. This collection consists of more than 700 drawings related to Melas’ work as an engineer, as well as a compilation of project notes, reference material, and data. This collection would be useful to researchers interested in industrial design, especially related to steel and iron production.

William E. Morris (1812-1875) was a civil engineer and railroad executive. The notebook contains fourteen separate specifications for canal and railroad work copied in longhand and a fifteenth in the form of an inserted printed handbill. They offer a good snapshot of early civil engineering practice and construction techniques. Evidence points to Morris as the notebook's author.

The collection primarily consists of newspaper clippings, telegrams, resolutions, and correspondence regarding Ramsay's death and funeral.