At over 1100 photos, this is one of Dave's larger pages. The page needed to be reorganized, photos needed to reflect car number and location (if known) date and who the contributor was. There were also quite a few doubles which needed to be weeded out.
Arguably there are a lot of ways to reorient or resort the info. I semi-followed Dave's lead by dividing between Streetcars and the Elevated, and then dividing the 'L' up by the different lines. Each group of photos is sorted by car number. I also made the thumbnails bigger.
A thank you to Joe Testagrose, Bill Volkmer, and many others who contributed photos and captions. A super large thank you to Graham Garfield at Chicago 'L' whose caption lookups for the 'L' scenes were indispensable -- thank you.
Graham runs one of the best websites to describe and document operations on the 'L' and is well worth your time to take a look at. Other sites I think you would enjoy are in the Links above.