Nagles of Ballinamona Castle

Hi All,

My fathers family is NAGLE. My grandfather, Charles George Baillie NAGLE, settled in Tasmania, Australia about 1900. On his marriage certificate he stated he was born in Queenstown Ireland, his date of birth was 9 April, 1873. To date I have not found his birth certificate. From information I have been able to find from an aunt and cousins, Charles line back is:

John Henry Baillie NAGLE bn Cork, cir 1838 (date from English Census 1851) m Hortense Maria Ernestine TOUSSAINT

his parents were:

Henry Baillie NAGLE bn London, England cir 1815 (place & date from English Census 1851 & 1871) m Johanna MURPHY bn Douayhoma? Cork, cir 1819 ( place & date from English Census 1851 & 1861)

his parents were:

John NAGLE of Ballinamona Castle m Elizabeth BAILLIE

his father was:

Garrett NAGLE of Monanimy.

This family has been very hard to trace as they keep moving. Henry Baillie NAGLE had several children born in Cork, but others born in various places around London, England. He appears in the 1851 and 71 census records but not in others. His wife Johanna is in the 1851 & 61 but dies in 1868. In 1861 she is living with some of her children in London but Henry is not with them but she is "living on her husbands income" according to the enumerator, so I assume they are still married. In 1875 John Henry Baillie NAGLE is living in Mauritus when his second son is born, he was the assistant manager of the Port Louis Gas Company. Henry is living with John at that time. But there is no other official record of this family in Mauritius.

Some of the family turn up in India, one was supposedly a tea grower in Ceylon, and my grandfather ends up in Tasmania after nearly 20 years at sea, supposedly going to sea as a cabin boy when about 9 or 10. 

Other lines of the family have turned up in Canada. The rest I have yet to find. 

The main things I would like to find would be Charles birth certificate and the parish or townland of Baillnamona Castle which is apparently near Mallow. Any other information on this family would be a bonus. 

Any help in tracking down this elusive family would be appreciated.