Middle River in Baltimore County, Maryland — The American Northeast (Mid-Atlantic)
The Glenn L. Martin Company
The Planes
Glenn L. Martin began to fly planes in 1909 in Santa Ana, California. After moves to Los Angeles in 1912 and Cleveland in 1917, Martin relocated his company to Middle River. A pioneering "birdman" of the day, Martin built the first U.S. Army training plane in 1913. By the start of World War I, Martin introduced the MB-1 bomber, the first "all-American" military plane.
In 1929, Martin selected Middle River as the location for his new plant due to the proximity to Baltimore and Washington, good railroad access, an ideal workforce, and year-round flying weather. Noted industrial architect Albert Kahn designed Martin's plant No. 1 in Middle River specifically for metal airplane construction. Airplane manufactures considered it to be the most in modern the country.
A dive bomber called the XTSM-1 was one of the first planes constructed at the plant, and among the earliest of its kind in the world. Pilots tested Martin seaplanes built for the U.S. Navy at Strawberry Point on Stansbury Creek.
In 1939, Glenn L. Martin Company designed the first intercontinental airliner. The China Clipper, also known as the Martin M/130, essentially functioned as a flying boat and was used by Pan Am to fly passengers to Asia, the Pacific Rim, and Africa.
In 1939, Glenn L. Martin and Albert Kahn continued their collaboration and built the Glenn L. Martin Airport as a testing and exit factory for the military aircraft manufactured at the plant. The airport's four runways intersected in a star-like pattern.
The People
During the World War II era, the Martin Company grew from 4,100 workers in 1939 to 53,000 in 1942. Plane workers migrated from the rural south, Pennsylvania, and the Midwest. Women and African-Americans contributed to the wartime work effort. Numerous housing developments were built, all within one mile of the Martin plants. Many families continue to live in these residences today.
The Plants
At the dawn of World War II, the Glenn L. Martin Company produced 3,572 B-26 Marauder Medium Bombers. Workers built the planes in Plant No. 2, erected in 1940-1941 across from Plant No 1 on Eastern Boulevard. Once again, Martin opted to work with Kahn, who designed the new building.
After World War II, the Glenn L. Martin Company changed from nearly all-military aircraft production to a mix of commercial and military. After Martin's death in 1955, Martin planes continued to be built at Middle river until 1960. In 1961, the company merged with the American-Marietta Company and became Martin Marietta.
In 1971, the State of Maryland bought the Glenn L. Martin Airport, which includes the original
Topics. This historical marker is listed in these topic lists: Air & Space • Industry & Commerce • War, World II. A significant historical year for this entry is 1909.
Location. 39° 20.289′ N, 76° 25.179′ W. Marker is in Middle River, Maryland, in Baltimore County. It is on Eastern Boulevard (Route 150) just west of White Marsh Boulevard (Maryland Route 43), on the right when traveling west. Touch for map. Marker is at or near this postal address: 2778 Eastern Blvd, Middle River MD 21220, United States of America. Touch for directions.
Regionally, this marker is in Central Maryland. It is also in the American Mid-Atlantic and in the Chesapeake Bay Region. Globally, it is in the North Atlantic Region, North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once one of the original Thirteen Colonies and also the Antebellum South.
Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies: A different marker also named The Glenn L. Martin Company (a few steps from this marker); Maryland Pioneer of US Aviation (approx. one mile away); Sediment Removal and Restoration Project (approx. 1.2 miles away); Bell UH-IM "Huey" Gunship (approx. 1.4 miles away); T-33 "Shooting Star" Jet Trainer (approx. 1½ miles away); F100 Super Sabre (approx. 1½ miles away); RF-84F Thunderflash (approx. 1½ miles away); T-34C Turbomentor (approx. 1½ miles away). Touch for a list and map of all markers in Middle River.
Credits. This page was last revised on December 28, 2021. It was originally submitted on December 28, 2021, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 1,783 times since then and 122 times this year. Photos: 1, 2. submitted on December 28, 2021, by Devry Becker Jones of Washington, District of Columbia.

