I have been playing with the photo more and more. Cropped, lightened, etc. Added some group names so it is easier to know who we are talking about (sorry I get easily confused)....
Group 1: May be crew or maybe a local media? The lady on the right of the group def has a regular camera - also it is def two women.
Group 2: I am pretty sure that is Dave on the right, no matter what I do to the image it is def grey hair and does not appear to be a cap. Height is right for him too. His son maybe the individual on this left?
Group 3: The one on the left is not a Globetrotter and I think he is too tall to be Leo. His hair is too dark to be John too. The person on the right with the smaller backpack could be a female or is it possibly Leo? I don't recognize the back packs on either of these two, if they had a green tint I would. Note: From playing with tints/hues, etc, if you add a little more yellow (just a little) the back packs are more of a greenish color. If you adjust the hue quite a pit you will get this:
Group 4: Looks to be two women possibly, for sure the one on the right is. Neither with blonde hair though. Also note the one on the right definitely looks to have long hair and be brunette (the one with the beanie like Jessica has been known to wear, but I think Meagan from the YT team wears them too). The one on the left at least has shoulder length hair which could be auburn.
Group 5: Looks like all crew people, but the three of them could include a racer for all I know...they are harder to make out than the ones in the front so to speak.