Hello Diane
My apologies for not responding earlier - but I have only just seen your query!
It is a bit out of my area, but I'll try to offer some help.
First of all, have you used the London Parish Registers available on ancestry at all? These are pretty good and you should be able to find exact confirmation and details such as parents, address, occupation etc.
Your baptisms are in different pairshes, so it is important to confirm you have the same family.
Burials are harder to find if you are using the search indexes. However, it is possible to use the files to browse through the registers instead. You will find registers that have not been indexed. This might lead you to the burial of the first Charles mentioned.
This would be the first steps I would take. It is likely these registers were at the LMA, therefore use Ancestry first up.
Once you have confirmed some baptisms, try to widen your search and not rely on the Ancestry search list. Enter different criteria (parents first names only, occupations, and parish etc).
I think the key to solving your puzzle, is to find out as much as possible about the family. This can be very helpful when finding later records.
Hope this helps.
All the best
Peter
