Hi LDL.
Welcome To Rootschat.

Maggie1895's advice is contained in Rootschat's 'Guidelines to posting'
on this site's Help page. This is so-called 'Netiquette'.
Personally, capitals don't bother me, but it does help if just the
surnames are capitalised so they stand out, especially in subject lines.
This will help to attract the people you would like to read your post.
Another useful item on the Help pages deals with 'Getting the best
results'. This has been very useful for me.
It is highly likely that people who are not researching John will still
try and help you with lookups etc., so what information are you looking
for? Do you already have information on his children, do you have him
in the censuses? Is there anything in particular you want to find out?
Searching for Stirling Prison may also provide something of use.
Let us know what you need, and I'm sure someone will try to help.