Magazine:
The Keystone Vol 47 No.1
Page:
3
Author:
unaccredited
Extras:
The Trust is created to re-build the PRR T1 4-4-4-4. Includes one photo of #5548, and some historical information.
Magazine:
The Keystone Vol 52 No.2
Page:
7
Author:
unaccredited
Detailed history, technical information, drawings, and many photos of this locomotive.
Magazine:
The Keystone Vol 52 No.2
Page:
18
Author:
Neil Burnell
This article goes more in depth than the previous article about testing the T1 prototypes, #6110 and #6111. Includes many photos.
Magazine:
The Keystone Vol 52 No.3
Page:
20
Author:
Brad Noble
Photos and status of the restoration project.
Magazine:
The Keystone Vol 50 No.1
Page:
10
Author:
Brad Noble
Extras:
Lists the curators of the #5550. A Lego model will be designed to help fund the project. Popular Mechanics features the project. Original blueprints have been found and completed. Reports on construction progress. Includes current status photos.