Welcome to Telecommunications History Group

The mission of Telecommunications History Group is to acquire, preserve, and promote the rich heritage of the telecommunications industry and to connect that past to evolving technologies and cultures.

Connections Museum Denver is located in the historic 931 14th Street building in Denver; It includes museum space on 14th floor, along with original executive offices and Allen Tupper True murals. Private tours are available by request.

Connections Museum Seattle, formerly the Herbert H. Warrick, Jr. Museum of Communications, boasts an extensive collection of switching equipment, telephones, central office and outside plant equipment. Open every Sunday.

THG Archives, located in Denver, CO, includes historic telephone directories, over 80,000 photographs and slides, historic documents, and other items. Research services are available from our staff or in person by visitors.

THG Virtual Exhibits is an online collection of research and educational resources, including fascinating stories of the people, places, and items that make the telecommunications history so important and meaningful.

Telecommunications History Group - THG Homepage Image

About Telecommunications History Group

The Telecommunications History Group (THG) was formed by a small group of retired and active telecommunications employees who were shocked and disappointed to learn that many historical items were being discarded and destroyed as buildings were relocated or put out of commission or as people and departments deemed something no longer necessary.

Recognizing the importance of preserving these items for future generations in order to tell the story of telecom, a 501 c (3) non-profit organization began in 1990, and THG was born! Today the organization includes two museums located in Denver and Seattle, and an outstanding archive, which includes both physical items located in Denver as well as digital resources.

THG operates through donations from individuals and companies who share the goal of maintaining the important heritage of telecommunications. Our small but mighty staff is supported by extraordinary volunteers and an active Board of Directors.

Whether you realize it or not, the telecommunications industry has touched and influenced your life. We can’t wait to share our stories, our collections, and our past with you!

Latest News from the THG Blog

Connections Museum Seattle held a successful Open House on July 15 & 16, hosting nearly 150 people over the two days. We celebrated the 30th anniversary of the Seattle ...
Before diving into the workings of the very earliest phones, let’s talk about how they work in general. After all, the phones of today work the same way as ...