File:Providence and Worcester Railroad logo.svg = fair use claimed = fair use under the Copyright law of the United States.
File:Providence and Worcester RR 1909.jpg = is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.
File:Route of the Providence and Worcester rail road (11839037763).jpg = Creative Commons Attribution 2.0 Generic license.
File:Providence and Worcester Railroad line within Salt Rock State Park, Sprague, Connecticut.jpg = Creative Commons Attribution 2.0 Generic license.
File:Middletown, CT - rail tracks east of Main St 01.jpg = Creative Commons Attribution-Share Alike 3.0 Unported license.
File:Providence and Worcester Railroad logo.svg = fair use claimed = fair use under the Copyright law of the United States.
File:Providence and Worcester RR 1909.jpg = is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.
File:Route of the Providence and Worcester rail road (11839037763).jpg = Creative Commons Attribution 2.0 Generic license.
File:Providence and Worcester Railroad line within Salt Rock State Park, Sprague, Connecticut.jpg = Creative Commons Attribution 2.0 Generic license.
File:Middletown, CT - rail tracks east of Main St 01.jpg = Creative Commons Attribution-Share Alike 3.0 Unported license.