Nicholas Coleopy

Details that I know about Nicholas Coleopy are:

Name: Nicholas Coleopy. If there is a second Christian name, I do not know it.  Family name could be spelled Collopy. Other spellings could be used, but I have not seen them used for him.

Birth:   Believed born in London, England.           
Calculated from age given at date of enlistment as given in his Army Account Book, he was born in July, 1848.            
Calculated from age given on Death Notice Card, he was born in 1849.
The parish in which he was born is not known. If a guess were made, I would suggest Westminster or a parish near it.           
I have not yet been able to find his birth certificate. Some in the family think he may have been an illegitimate child, and/or adopted.

Marriage: From the marriage certificate:            
Married Hannah Anderson at St. Philllipe's and St. James' Church, Whitton, Middlesex, England, 16 August, 1875. Nicholas' father is given as also Nicholas Coleopy, but so far have found no trace of him.  

Death: Died at age 52 (according to Death Notice Card).           
Buried at West Ham Cemetery, West Ham, Essex, 31 August, 1901.
Hannah Coleopy died 9 June, 1901. Probably buried West Ham Cemetery, West Ham, Essex.  

Army:  Enlisted 1/6 Regiment of Foot, at Westminster, Middlesex. Joined Headquarters, Gosport, Army Number 993.           
Transferred to 50th Brigade, 57th Regiment. Appointed Bandmaster 1 August 1875 (1 July 1881 in another reference)           
Served in India, Ceylon, South Africa, Ireland.           
Transferred to 57th Regiment (1st Battalion, Middlesex Reg't). Believe he received a new number, 624). 1 July, 1881. Served in Channel Islands, Dover.
Discharged 1886.  

Family: Nicholas and Hannah had 8 children as follows:
Flora Fotherby     b.      5  May  1876     at Colombo
Emily Hannah             10  Sept 1877     at Colombo           
Harriet Maud                 1 Sept 1880         Limerick           
Frank N.A.                 16  July  1883         Guernsey           
Norah K.H.                 11  June 1885         Dover           
Albert Edward                  May  1887         W.Ham           
Stephen A.                 20 July   1889         W.Ham           
Charles H.

What I desperately want to know: -details of Nicholas Coleopy's birthdate and birth location. -is there a birth certificate, and how can I get a copy? -names of his birth parents and/or adoptive parents. -did he have any siblings, birth or adoptive? 

Contact Hugh Coleopy at hcoleopy@pacificcoast.net.