Punch Family Haulbowline to Monkstown CO Cork Ireland

My great great grandfather is John Punch and he married Margaret Buckley here is my family history after alot of research. If anyone can fill in the blanks I would be most grateful.

John Punch married Margaret Buckley date unknown
John must have died in between the years of 1895/6 and 1901 as on the 1901 census Margret is a Widow living with her children below in Curraghbinny, however James is found with his Grandmother Catherine Buckley in Currabinny at this time.
1911 census they are all together.
had 4 children
1)Maurice Punch born: 18/09/1891 in Haulbowline
died: 11/04/1968 Monkstown, Co. Cork
married Hannah McDonnell born: 08/09/1891 district of carrigaline
died: 30/11/1957 Monkstown, Co. Cork.
They had 5 children: my dad Sean(John),Julia (Sheila), Maurice (Mossy), Timothy (Teddy) and Margaret (Peggy)

Hannah's parents were James and Julia McDonnell. James died 28/02/1933 and Julia died in Barnahely on the 14/08/1918

2)James Punch born 05/01/1890 Haulbowline
died: 19/02/1954 in North Main Street, Cork.
married on 8/1/1916 to Bridgit Kelliher in St. Michael's Church in Blackrock, Cork.
They had no children

Bridgit's father is Timothy Kelliher from Macroom

3)Helena Punch born: 23/08/1893 Haulbowline
died: 09/05/1898 in Currabinny, Co. Cork.
Aged 4 years

4) John Philip (Jack) born 03/05/1896 Haulbowline
died: 14/09/1958 in St. Finbarrs Hospital, Cork.
Did not marry.

The only other piece of information at this stage is that John had a sister called Mary Anne Punch.

Mary Anne Punch born:?
married 14/11/1867 in Passage West, Co. Cork to Timothy Sullivan
father named as James Punch from Shanbally, Co. Cork.
Had 5 children:
James Sullivan born 26/02/1876
Jermiah Sullivan born:?
John Sullivan born 08/06/1883
Mary Anne Sullivan born:?
Hannah Sullivan born 12/04/1881

I will update this at some stage when I can trace back John and Mary Anne.