To be honest I prefer these photos in black and white. While I appreciate the work that has gone into coloring them, to me it removes the "value" of the image. To me when they're in black and white it shows the age of the photo and makes it clear to me that it's a historical image, but when you add the colors to it they just make it feel like I don't know, just a modern picture of some guys dressed in old clothes re-enacting something.
I know what you mean - but it does help imagine how it must have 'looked'. I think a lot of the time we forget black and white pictures are actually 'real' (even though they obviously are).
But...everything was in colour in 1914 The world wasn't in black and white.
But photographs weren't though, they were either in black and white or various sepia tones, it just feels faked to me if it's not the original format. Not saying they aren't good, because they are very well done and look very good, they just don't feel real to me now.