A portrait of Captain Caleb Coggeshall by William Dunlap, featuring the mariner with his navigational tools and a nautical chart.

This portrait depicts Captain Caleb Coggeshall, a maritime figure of the early American period. William Dunlap, a prolific painter and theatre historian, captures the subject in a manner typical of the era's professional portraiture. The captain is seated at a desk, his posture suggesting a moment of pause from his navigational duties. He holds a pair of dividers, a tool essential for chart work, while a nautical map lies spread before him on the table.

The composition employs a clear division between the interior space and the view beyond. To the right, a window reveals a glimpse of a coastal scene with a ship, providing context for the captain's profession. The palette is dominated by the deep blue of his double-breasted coat, which contrasts with the lighter tones of his waistcoat and the muted background. The lighting is focused on the subject, drawing attention to his steady gaze and the tools of his trade.

Dunlap's technique in this watercolour demonstrates a precise approach to form and detail. The striped collar and the texture of the paper map are rendered with care, reflecting the artist's interest in documenting the specific attributes of his sitters. The work provides a window into the life of a merchant mariner at the turn of the nineteenth century. It avoids excessive ornamentation, favouring a direct representation of the individual and his environment. This piece is a representative example of American portraiture from the period, documenting both the physical appearance and the professional identity of its subject.