Which artist is NOT mentioned as a member of the Salmagundi Club?

The Salmagundi Club, founded in 1871 in New York City, is known for its association with many prominent artists and architects, offering a space for the exploration and appreciation of fine arts. John LaFarge, Charles Dana Gibson, and Stanford White are all notable figures who had ties to the club, either as members or through significant contributions to the arts and design communities. Their involvement with the Salmagundi Club reflects their engagement and influence in the art scene of that era.

In contrast, Andrew Wyeth, while a highly respected artist known for his realistic paintings and significant works in American art, is not associated with the Salmagundi Club in the same way as the others mentioned. His career and style, which lean more towards realism and a distinctly different artistic vision, did not align with the foundational mission and member roster of the club during its formative years. Hence, he is the correct choice for being the artist not mentioned as a member of the Salmagundi Club.