See the memoirs (1925, repr. 1971), begun by Bryan and finished by his widow; biographies by W. C. Williams (1936), P. W. Glad (1960), P. E. Coletta (3 vol., 1964–69), L. W. Koenig (1971), and W. Kazin (2006); studies by L. W. Levine (1965) and P. W. Glad, ed. (1968).
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