Ground Swell is a 1939 painting by American artist Edward Hopper which depicts five people on a heeling catboat in a light swell, looking at an ominous buoy. It was in the collection of the Corcoran Gallery of Art from 1943 until it was purchased by the National Gallery of Art in Washington, D.C. in 2014.

https://en.wikipedia.org/wiki/Ground_Swell

Here’s a neat timeline of the artist’s life: https://www.pbs.org/wnet/americanmasters/edward-hopper-biography-and-career-timeline/30443/