What nickname was given to the wife of US President Rutherford B. Hayes due to her support of 'the temperance movement'?

Lucy Ware Webb Hayes (August 28, 1831 – June 25, 1889) was a First Lady of the United States and the wife of President Rutherford B. Hayes.

Hayes was the first First Lady to have a college degree. She was also a more egalitarian hostess than previous First Ladies. An advocate for African-Americans both before and after the Civil War, Lucy invited the first African-American professional musician to appear at the White House. She was a Past Grand of Lincoln Rebekah Lodge of the Independent Order of Odd Fellows, together with her husband.

Historians have christened her "Lemonade Lucy" due to her staunch support of the temperance movement; however, contrary to popular belief, she was never referred to by that nickname while living, and it was her husband who banned alcohol from the White House.