That was an awesome pictorial. You could almost feel like you were there. One thing that came to mind as I poured over all these photos, was practically all of the soldiers wrapped their lower pant legs. I've never heard a discussion about this and wonder why this was done. Like the dress code was "knickers".
Puttees. They were the fashion of the time, and had the advantages (like gaiters) of protecting your lower legs from bruises and such, and avoiding muddy or wet pants legs flapping around your ankles.
