Glen Arm, Maryland

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Glen Arm, Maryland
Unincorporated community
Glen Arm, Maryland is located in Maryland
Glen Arm, Maryland
Glen Arm, Maryland
Location within the State of Maryland
Glen Arm, Maryland is located in the US
Glen Arm, Maryland
Glen Arm, Maryland
Glen Arm, Maryland (the US)
Coordinates: 39°27′12″N 76°29′40″W / 39.45333°N 76.49444°W / 39.45333; -76.49444Coordinates: 39°27′12″N 76°29′40″W / 39.45333°N 76.49444°W / 39.45333; -76.49444
Country  United States
State  Maryland
County Baltimore
Time zone UTC-5 (Eastern (EST))
 • Summer (DST) UTC-4 (EDT)
ZIP codes 21057

Glen Arm is an unincorporated community in Baltimore County, Maryland, United States.[1]

Ravenshurst was listed on the National Register of Historic Places in 1978.[2]

Glen Arm was once the home to a Grumman aircraft manufacturing plant. Today, the building serves as the American headquarters of and a warehouse for Ulla Popken women's clothing.[3] Until 1958, this community was served by the Maryland and Pennsylvania Railroad at milepost 14.5. In 1921, at the railroad's crossing of Glen Arm Road, what generally is recognized as the nation's first train-actuated railroad crossing signal was installed by the railroad's Superintendent of Signals, Charles Adler, Jr. Adler later designed early traffic-actuated traffic lights for the City of Baltimore, and also invented the system of flashing warning lights used on aircraft.[4] Glen Arm Road until the late nineteenth century was part of Old Harford Road, one of the early routes used for conveying agricultural products from parts of Harford and Baltimore Counties and southern Pennsylvania to the port of Baltimore. Glen Arm was home to American Attorney General, Charles Joseph Bonaparte, who was a great nephew of Napoleon, the French Emperor. While Attorney General, Charles Joseph Bonaparte created the Bureau of Investigation (now the FBI).

In the 1990s Glen Arm was the center of the Towson Glen Arm music and art collective.[5]

See also[edit]


  1. ^ "Geographic Names Information System". Glen Arm (Populated Place). U.S. Geological Survey. 2009-01-29. 
  2. ^ National Park Service (2008-04-15). "National Register Information System". National Register of Historic Places. National Park Service. 
  3. ^ Larry Carson (Oct 14, 1997). "German clothing retailer to move to Grumman site; Glen Arm residents consulted about decision". The Sun - Baltimore, Md. 
  4. ^ George W. Hilton (1999). The Ma & Pa — A History of the Maryland & Pennsylvania Railroad. Baltimore, MD: Johns Hopkins University Press. ISBN 9780801862946. 
  5. ^ Withay, Justyn. "Think Baltimore Music Is Weird? In The '90s, Towson And Glen Arm Music Was Even Weirder". Retrieved 11 May 2018.  External link in |website= (help)