Christian (no middle name) Owen born Q2 1845 Kingsclere, Hampshire
Christian (no middle name) Owen married Q4 1865 Kingsclere, Hampshire
No Christian Peter Owen listed.
FreeReg2.freereg.org.uk lists the Christian from Kingsclere as female.
FreeCen.org.uk has no matches.
Christian Peter Owen 1901 Queensland electoral rolls.
Christian Peter Owen 1924 Nantucket, Massachusetts.
Ancestry.co.uk has no matches.
With the small amount of Information given, it will not be easy to find much out about him. You refer to his death certificate, if you include that information in your request, you might get more answers.
You could also start a tree here and add him and his children. That way you could get more information on the whole family.