+---John O'Donnell (1839-08 SEP 1879)
| +---Ann Gallagher 
+---Hugh O'Donnell (12 DEC 1870-22 OCT 1904)
| | +---Hugh Gallagher (1801-18 NOV 1878)
| +---Frances (Fanny) Gallagher (1850-13 MAY 1884)
| +---Ann Doherty (1808-30 OCT 1883)
+---Terrence Hugh Joseph O'Donnell (20 MAR 1905-24 APR 1997)
| | +---Joseph Garrett (1813-22 OCT 1913)
| +---Mary Lucy Garrett (1873-14 AUG 1934)
| +---Mary Lucy Hapley (1835-11 FEB 1907)
Patrick Hugh O'Donnell
| +---William Burrell
+---Ann Burrell
| +---Maurice Harnett (1857-)
+---Mary Harnett
+---Ann Sweeney (1861-)