Hi Richard

Sorry to be a pain,but i have looked at the info you have researched,but have not seen how you come to know of Alfred's mother's maiden name.

There is a catholic church in Gravesend,but i believe you have to make a payment to them to be able to trace the baptism that you require.If you think that the Alfred George Johnson registered in September qtr is your's,it would be best to apply for the certificate.

regards john