I don’t think it’s accurate to say that there is only one image of Thomas Bayes in the training set. A quick image search reveals many duplicates and variations

I don’t think it’s accurate to say that there is only one image of Thomas Bayes in the training set. A quick image search reveals many duplicates and variations of this photo as well as some artistic interpretations of the image. I don’t know how important that is, but it has a lot more examples of labelled data than just that one photo.