Archbishop Bolesław Twardowski [Catholic-Hierarchy]
- ️David M. Cheney
- ️Thu Feb 18 1864
- b/c2+: Les Ordinations Épiscopales, Year 1919, Number 1
- c1: CB, 17 Dec 2017
- ob/c2: Le Petit Episcopologe, Issue 1, Number 50
- ob: Le Petit Episcopologe, Issue 2, Additions/Corrections (front)
- c2: Le Petit Episcopologe, Issue 6, Number 278, Ascendance
- c2: Le Petit Episcopologe, Issue 11, Number 560, Ascendance
- ob/c2+: Le Petit Episcopologe, Issue 67, Number 5,279