[Runscott]

The following might sound like common sense, but what the heck, we'll see if that sort of thing flies around here:

When someone states that a photo is of a specific person, I first ask myself: "Does it look like him?" If the answer is "no way in hell", then I'm done. If it sort of looks like him, and there is other documentation to indicate that it is him, then I might start looking more closely at features.

edited to add: if you get bored, you can always use google images to locate loads of photos of Fred Clarke, and you will find that, amazingly...they all actually look like the same guy (Fred Clarke). You won't find any 'old, fat' Clarke photos, or 'fuzzy, obscured features' Fred Clarke photos that do not look like him.

This photo fails the "Is it [person x]?" test resoundingly. Didn't even need Mark's teachings, although I have plenty of times in the past.