Willard Leroy Metcalf was an American artist born in Lowell, Massachusetts. He studied at the School of the Museum of Fine Arts, Boston, and later attended Académie Julian, Paris. After early figure-painting and illustration, he became prominent as a landscape painter. He was one of the Ten American Painters who in 1897 seceded from the Society of American Artists. For some years he was an instructor in the Women's Art School, Cooper Union, New York, and in the Art Students League, New York. In 1893 he became a member of the American Watercolor Society, New York. Generally associated with American Impressionism, he is also remembered for his New England landscapes and involvement with the Old Lyme Art Colony at Old Lyme, Connecticut and his influential years at the Cornish Art Colony.

General of the Armies John Joseph "Black Jack" Pershing GCB was a senior United States Army officer. He served most famously as the commander of the American Expeditionary Forces on the Western Front in World War I, 1917–18.

Pershing rejected British and French demands that American forces be integrated with their armies, and insisted that the AEF would operate as a single unit under his command, although some American divisions fought under British command, and he also allowed all-black units to be integrated with the French army.

Pershing's soldiers first saw serious battle at Cantigny, Chateau-Thierry, Belleau Wood, and Soissons. To speed up the arrival of American troops, they embarked for France leaving heavy equipment behind, and used British and French tanks, artillery, airplanes and other munitions. In September 1918 at St. Mihiel, the First Army was directly under Pershing's command; it overwhelmed the salient – the encroachment into Allied territory – that the German Army had held for three years.

The Louisiana Purchase Exposition, informally known as the St. Louis World's Fair, was an international exposition held in St. Louis, Missouri, United States, from April 30 to December 1, 1904. Local, state, and federal funds totaling $15 million were used to finance the event. More than 60 countries and 43 of the then-45 American states maintained exhibition spaces at the fair, which was attended by nearly 19.7 million people.

Historians generally emphasize the prominence of themes of race and empire, and the fair's long-lasting impact on intellectuals in the fields of history, art history, architecture and anthropology. From the point of view of the memory of the average person who attended the fair, it primarily promoted entertainment, consumer goods and popular culture.