Jane Norton Grew, known upon her marriage as Mrs. J. P. Morgan Jr., was an American socialite, art collector, and dilettante horticulturalist. Born in Boston to an affluent family, she married J. P. Morgan Jr., son of American financier J. P. Morgan, in 1890 and became prominent in both London and New York society, playing host to royalty including The Duke of Connaught and Strathearn. Grew curated and managed the Morgan library and art collection, and became involved in horticulture on her Long Island estate in Glen Cove.

John Pierpont Morgan Jr. was an American banker, finance executive, and philanthropist. He inherited the family fortune and took over the business interests including J.P. Morgan & Co. after his father J. P. Morgan died in 1913.