One of my favorite painters is American Impressionist Childe Hassam (1859-1935), and I think it is this beautiful painting that first captured my heart:

Fourth of July, Childe Hassam, 1916

This painting is in a private collection, but was on tour a few years ago.

I purchased this book on the art of Childe Hassam, and often take it out to enjoy his beautiful paintings, in particular