A refined eighteenth-century pastel portrait of Mercy Greenleaf Scollay by the noted American artist John Singleton Copley.

This portrait depicts Mercy Greenleaf Scollay, a prominent figure in eighteenth-century Boston society. Executed by John Singleton Copley, the work demonstrates his technical proficiency in the medium of pastel. Copley, who became the most sought-after portraitist in colonial America, utilised the soft, powdery nature of the medium to capture the subtle textures of skin and fabric. The subject is shown in a three-quarter view, her gaze directed away from the viewer, which provides a sense of quiet composure.

Copley focuses on the details of the sitter's attire, including the delicate lace trim of her bodice and the pearls woven into her hair. The lighting is managed with precision, creating soft transitions across the face and neck. The background remains neutral, ensuring the viewer's attention stays on the subject. This piece reflects the conventions of portraiture during the mid-eighteenth century, where the social status of the sitter was communicated through refined dress and a dignified posture.

Pastel was a popular choice for portraiture during this period, as it allowed artists to achieve a high degree of finish and a soft, luminous quality that oil paint could not always replicate. Copley's ability to render the specific character of his sitters, combined with his technical skill, allowed him to document the elite of colonial society with accuracy. This portrait remains a clear example of his early career in Boston before his eventual move to London. The work is currently held in the collection of the Museum of Fine Arts, Boston, and serves as a record of the personal style and social standing of Mercy Greenleaf Scollay.