In Mrs. Joseph Anthony Jr. (Henrietta Hillegas), Gilbert Stuart depicts a woman in a formal dress, showcasing a rich palette of muted colors.

The background is a soft, neutral tone that emphasizes the subject's presence. Her expression is serene yet confident, capturing a moment of grace. The light falls gently on her face, highlighting her features and the intricate details of her attire. This painting is executed in oil on canvas, a common medium for portraits during the late 18th century.

The dimensions are approximately 76.2 x 63.5 cm, making it a standard size for portraiture of the time. Stuart's technique is characterized by smooth brushwork and a keen attention to detail, particularly in the rendering of fabric and skin tones. The composition is balanced, with the figure centrally placed against a subtle backdrop. Gilbert Stuart was a prominent American portrait painter known for his ability to capture the likeness and personality of his subjects.

This work, painted around 1795, is part of a series of portraits he created for notable figures of his time. An interesting fact about this painting is that it reflects the growing importance of portraiture in American society, as it served to establish social status and personal identity in the post-colonial era.