Hello Malcolm
Thank you so much for the link, have just had a look at the info on the Volkovskoe cemetery.
Gosh, it is rather large and like you say, it will certainly be like looking for a needle in a haystack

re brick manufacture: My Matthew Abbey had a sister Ann (Abbey) Freek who went to Canada and then onto Illinois USA, two of her sons were listed as 'brickmakers' on 1851 Ontario census. These are the only family members that I have managed to find (as yet) with a connection to brickmaking, all others appear to be ag labs or farmers.
again, many many thanks for your help
Myfi