context: Higgins was born in Boston, Massachusetts, where he attended the public schools and graduated from Harvard University in 1917.
source: Returning to civilian life, Higgins was employed as a chemist from 1919 until 1922.
reference_original: Una volta fatto ritorno alla vita civile, Higgins lavorò come chimico dal 1919 al 1922.
reference_flipped: Una volta fatto ritorno alla vita civile, Higgins lavorò come chimica dal 1919 al 1922.