View of President Abraham Lincoln's Funeral Procession on Broadway Entering Union Square in New York City (1865)

View of President Abraham Lincoln's funeral procession on Broadway entering Union Square in New York City, April 1865. The house on the left of the second photograph is where a young Teddy Roosevelt can be seen in a window (just out of frame here) of another photograph which was taken from the same position. Animated stereoview.

Source.
Teddy Roosevelt photograph article link.