The angle is not exactly the same. It appears the picture of my grandfather was shot from an elevated position… I also suspect the flag pole was further away from the building in 1919. At least it appears to be when you compare different aspects of the two photos.
Still, I got what I was looking for.
A picture of myself at the same location (St. Mark’s Basillica) as my grandfather in 1919.
Maybe I am a dork, but I think it’s pretty cool.