TDC maintains a digital data repository called the TDC Stacks.

Some of the collections of files are open to the general public, while others are for TDC staff access only. To access the restricted collections, you need to log in, and you need to have appropriate access permissions. For new TDC Staff users of the TDC Stacks:

(1) Go to the TDC Stacks home page
(2) Click the link in the left, "My TDC Stacks" and then "Click here to register."
(3) After you register, send an email to notify us that you have done so, so that proper access permissions can be granted.

You will then receive an email note indicating that you are set up to access the TDC Stacks.