I don't think there is any copyright protection claimed for the historic photos on our website, only for any of the written material. That site is being reworked anyway and will soon be replaced. I have material used in the Rainbow Route and I don't claim copyright, and neither does Sundance on photos credited to other sources. They can copyright the picture caption as they wrote it, but not the picture. Dell gave the Rainbow Route to the SJCHS a couple of years ago but retained the publishing rights--we have all the material used to print the books. As a minimum, photo sources should always be credited.
Fritz