On 1860, Prince Albert Edward took a daylong excursion aboard the 270-foot revenue cutter USS "Harriet Lane" to Mount Vernon, the ancestral home of George Washington. The ceremonial visit to Mount Vernon was thought of at the time as not only a tribute to Washington as a man and leader, but as symbolic of reconciliation between England and its former colonies. The American artist Thomas Prichard Rossiter (1818-1871) finished a large horizontal oil painting that captured both the importance and solemnity of a portion of this visit. The featured document and painting about the then-Prince of Wales's visit to Mount Vernon serve as excellent primary sources for a lesson on American diplomatic history.