I suggest, if you still live near to the place where he is buried, go to the registration office and tell them the information about name and dates and the circumstances, and ask them to look in the register for a birth and a death with just a few days between them.
Alternatively. look up on findmypast.co.uk in the date and year for the surname and no first name just listed as boy, then look to see if there is a death recorded at about the same time for no first name and age zero.