Sara Day was a researcher and curator with the Library of Congress, where she authored and/or edited numerous exhibition catalogs, resource guides, and books, including: Many Nations (1996), and American Women (2001). As a freelance writer-researcher and independent scholar, she was chief researcher, managing editor, and collaborator for historian Robert Remini for The House: The History of the House of Representatives (2006); and she researched and wrote Women for Change (2007). Earlier in her career, she was appointed sole researcher in 1973 for Philadelphia's massive bicentennial exhibition, A Rising People. Day's previous book, Coded Letters, Concealed Love: The Larger Lives of Harriet Freeman and Edward Everett Hale, was published in 2014.