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Simplex Pennant Collection

Identifier: CHC026

Collection Description

The Simplex Pennant Collection is composed of the Simplex Wire and Cable Company’s employee newsletter, The Simplex Pennant, from February to September of 1945. The newsletter was published weekly by employees for other employees detailing company life, war efforts, and WWII news.


  • February-September 1945

Language of Materials

Material is in English.


Collection is available for research under the CHC rules of use.

Copyright Notice

Copyright for materials resides with the creators of the items in question, unless otherwise designated.

It is the responsibility of the researcher to understand and observe copyright law and to identify and satisfy the holders of all copyright. Questions concerning copyright and permission to publish should be directed to the Cambridge Historical Commission Archives.

Historical Context:

In 1840 Charles A. Morss and Oliver Whyte became partners founding the Morss & Whyte Company. Morss & Whyte incorporated the Simplex Electrical Company in 1895 changing the name to Simplex Wire & Cable. At the time Simplex produced insulated wires and cables for electrical use. In 1902 the offshoot company, Simplex Electrical Heating Company, was created which produced heating appliances such as flat irons and ranges.

Simplex Wire and Cable Company specialized in producing and innovating modern cable systems based in Cambridge, MA. They provided cables specifically used during war times including The Spanish War of 1898, World War I, and World War II. At its height in the mid1940s, Simplex Wire and Cable Company employed over 2000 people and had branches in several other cities including New York, San Francisco, Detroit, and Philadelphia. During this time 90% of company products were sold to war agencies. The company played a principle role in WWII by manufacturing the innovative deep-sea telegraph cables and was the sole provider of these cables to the United Nations.

The general offices were located in Boston and moved to the company’s plant at 79 Sidney Street, Cambridge, in 1932. The company moved to North Berwick, ME in 1969


1 oversize flat box


This collection contains 18 issues of the Simplex Pennant published weekly from February 9, 1945 and ends September 7, 1945 published weekly. Within this run there are 9 issues missing. Each issue is six pages long front and back divided into four columns. Each issue can include department updates, employee updates, war updates, cartoons, advertisements, birthday and wedding anniversary announcements, committee reports, attendance reports, opinion pieces, and trivia. Each issue also includes black and white photographs next to the by-lines or supplementing the articles.

Some illustrations and terms used in the newsletters would now be considered offensive. Such terms and attitudes do not reflect language deemed appropriate by the CHC or its employees.

Physical Location

Collection is stored on-site



Related Sources:

Some items have been digitized and are avaliable on our Flickr page here

Processing Information

Processing and finding aid by Elise Riley, February 2018. Encoded by Brittany Fox, December 2020.
Inventory of the Simplex Pennant Collection, February-September 1945
Processing and finding aid by Elise Riley, February 2018. Machine-readable finding aid by Brittany Fox, December 2020.
Description rules
Finding Aid Was Prepared Using Dacs
Language of description
Script of description
Code for undetermined script
Language of description note
Description is in English.

Repository Details

Part of the Cambridge Historical Commission Archives Repository

831 Massachusetts Avenue
2nd Floor
Cambridge Massachusetts 02139 US