Cornell’s J. Meejin Yoon, B.Arch. ’95, and composer Roberto Sierra have been elected to the American Academy of Arts and Letters, considered the highest form of recognition of artistic merit in the United States in their respective fields, the academy announced March 5. Yoon is co-founding principal of Boston-based Höweler+Yoon Architecture. Her most recent project was the Memorial to Enslaved Laborers at the University of Virginia.