I’ve found and added a number of different paintings and photographs of the Harlem River Valley into my archives, but until only a couple of days ago I hadn’t thought much about postcards as sources.  It turns out that postcards are great sources!  They offer a historically accurate but also popular representation of each subject.  They are also fun to look at.  Below are a few of these postcards from the early 20th century.  Stay tuned for more.