New conservation research has authenticated James McNeill Whistler's earliest-known portrait, a pocket-sized painting produced while he was living in Paris in his early 20s. The work, titled *Head of a Peasant Woman* (1855–58), is now on view at Tate Britain as part of a major survey of the artist's life and art, where it has been reunited with four other oil portraits from the same period for the first time in over 120 years. The exhibition also features a previously unseen self-portrait of Whistler smoking from a private collection and, for the first time, sketchbooks from his teenage years, offering new insights into his early development.
This discovery matters because it transforms understanding of Whistler's formative years, revealing how he transitioned from a draughtsman and etcher to a master of oil painting. Infrared analysis shows that Whistler initially followed preparatory graphite drawings before learning to paint directly with the brush, a technique that anticipated Impressionist methods. The authentication resolves long-standing doubts about the painting's origins and highlights the importance of scientific analysis in art historical research, while the exhibition at Tate Britain provides a rare opportunity to see early works that have not been shown together since Whistler's death.