Eisenstaedt at Penn Station, 1943

Alfred Eisenstaedt was a Prussian-born photographer who is probably most famous for his iconic V-J Day in Times Square photograph. Eisenstaedt had worked in Nazi Germany, photographing personalities such as Hitler and Goebbels, before fleeing to the United States in 1935. There, he worked with Life magazine, taking photographs of both iconic American scenes and celebrities such as Hemingway and Sophia Loren.

To me, however, some of Eisenstaedt's most moving photographs are the series he took in New York's Penn Station in 1943, of soldiers leaving for war.

and my favorite

You can find some more here.