What about paintings!!

Is it wrong for a guy to paint a picture off of a photograph then! Techically he is alterting the original.
One thing in all this that is lost, is perhaps the accent on history. One looks at these B&W images and sees a string of coaches and caboose behind the 487. In another shot there is 490 with another string of coaches behind it. So, the viewer figures they are all the same.
Without something preserved in COLOR, everyone might assume they are all yellow coaches. However the film indicates a yellow refer, a brown Caboose, 3 yellow passenger coaches, and the rest are the ex-San Juan dark Green. We are colorizing the B&W to historically accurate colors that are in the film. What if the film and the images were black and white and nobody ever knew what color anything was. I guess in my mind it was kinda neat that these images were available at all, that show the exact train.
This is only first of several I plan on doing with my dads films. Others will be Baltimore and Ohio, New York Central, and we have gobs of Norfolk and Western. I don't think we will find images at the Denver Public Library for those films. However, if I am lucky I will be able to find some that are color to begin with and avoid the expense and the other ramifications.
Cheers,
Greg Scholl