Born in Ohio, and raised in Michigan, Justice Henry graduated cum laude, from Wellesley College in 1988 with a bachelor's degree in Economics. She graduated summa cum laude from Boston University School of Law in 1993, where she was the projects editor of the American Journal of Law & Medicine and won the American Jurisprudence Award for the course in Corporations.
Upon graduation she served as a law clerk to Vermont Supreme Court Justice Denise Johnson. In 1994, she became an associate in the firm of Crosby, Heafey, Roche & May PC in Oakland, California. Moving back to Boston in 1996, she became an associate and subsequently a partner in the firm of Foley Hoag LLP where she became a litigation attorney focusing on intellectual property disputes, commercial litigation and product liability. In this practice she represented corporate and individual clients from a diverse range of businesses and industries, including pharmaceuticals, medical devices, telecommunications and food processing equipment. Early in her career with Foley Hoag, she completed a four month rotation in the Norfolk County District Attorney's Office prosecuting jury and bench trials. She culminated her career at Foley Hoag as the co-deputy coordinator of the Litigation Department.
From 2011 to until her appointment to the Court, Justice Henry was a Senior Staff Attorney and Youth Initiative Director of Gay & Lesbian Advocates & Defenders. As the leader of the Youth Initiative she was involved in public policy advocacy, education and strategic litigation efforts in New England and on a national level.
Appointed to the Court by Governor Charles Baker, Justice Henry joined the court on December 22, 2015.