To create the support for Under the Wharves, Twachtman attached two cedarwood cigar box tops of the same size together with staples. The horizontal format that resulted may have prompted his design, which features repeating horizontals. The covered wharf in the work is both within the scene and establishes its frame.
TThis painting is represented in one of Twachtman’s charcoal sketches recording work he created in the summer of 1900 (D.1407). The differences between the sketch and the painting suggest that he made changes to the painting after he drew it. He reduced the rigging on the anchored ship at the center of the work, gave more solidity to the shed in the background, and created a larger opening beneath the wharf’s roof.
Under the Wharves was exhibited with its current title in Twachtman’s 1901 exhibitions in Chicago and Cincinnati.
The painting was subsequently in Twachtman’s 1903 estate sale, where it was one of six works purchased from the sale by Julian Alden Weir. At a point when the painting was cleaned, the J. H. in the artist’s signature rubbed off. The full signature can be seen in earlier photographs of the work.