+--John Edward Joseph O'SULLIVAN  (15 SEP 1917-1975)
+--William John O'SULLIVAN 
|  |     +--William Loughlin HANNIGAN  (6 JUN 1855-25 SEP 1929)
|  |  +--William Joseph HANNIGAN  (4 FEB 1902-2 DEC 1971)
|  |  |  |     +--John MCGOWAN  (bef-0ct-1798-1 OCT 1862)
|  |  |  |  +--John (Jr.) MCGOWAN  (7 JUN 1837-14 FEB 1914)
|  |  |  |  |  +--Bridget L. MURRAY  (BEF MAY 1815-6 APR 1845)
|  |  |  +--Susan Catherine MCGOWAN  (6 JUL 1868-12 FEB 1943)
|  |  |     |  +--Patrick MCCANN  (1803-JUN 1876)
|  |  |     +--Mary MCCANN  (7 JUL 1839-24 FEB 1925)
|  |  |        +--Susan MCCAFFERTY  (-1851)
|  +--Mary Agnes Estelle (Babe) HANNIGAN  (11 OCT 1930-15 JUN 2000)
|     +--Mary Katherine (Estelle) SWEENEY  (24 JAN 1901-23 DEC 1991)
Maeve Agnes O'SULLIVAN 
+--Moira LOUCKS