This blog has an awesome historic photo collection of various trolley operations around US and Canada. I've subscribed to the newsletter and enjoy perusing the pics.
https://thetrolleydodger.com/2018/02/04/a-traction-photo-album-part-1/
https://thetrolleydodger.com/2018/02/07/a-traction-photo-album-part-2/
https://thetrolleydodger.com/2018/05/31/a-traction-photo-album-part-3/
The site not only has info and pics of trolleys (trams), it also has pics and stuff on electric engines including GG1s, AEM-7s, E60s, and others.
https://thetrolleydodger.com/2018/02/04/a-traction-photo-album-part-1/
https://thetrolleydodger.com/2018/02/07/a-traction-photo-album-part-2/
https://thetrolleydodger.com/2018/05/31/a-traction-photo-album-part-3/
The site not only has info and pics of trolleys (trams), it also has pics and stuff on electric engines including GG1s, AEM-7s, E60s, and others.