ʃiː dˈaɪd ˌɔn sɛptˈɛmbɚ sˈɪks, nˈaɪntiːnhˈʌndɹɪd sˈɪksti fˈoːɹ, fɹʌm ɐ hˈɑːɹt ɐtˈæk æt ðɪ ˈeɪdʒ ʌv fˈɪfti tˈuː, ænd wʌz stˈɪl ɛmplˈɔɪd æt dʒˈɔːɹdʒ wˈɑːʃɪŋtən jˌuːnɪvˈɜːsᵻɾi.
She died on September 6, 1964, from a heart attack at the age of 52, and was still employed at George Washington University.