Thomas Eakins, American, 1844-1916 – A May Morning in the Park (The Fairman Rogers Four-in-Hand) Philadelphia Museum of Art

The picture has something of this: people, transportation system, cavalry, seated, carriage, two, vehicle, group, man, cart, military, group together, horse, recreation, mammal, child, four, three.
Perhaps it’s a painting of a group of people riding in a carriage being pulled by horses down a dirt road by.