Hello Justin....thanks yet again. You're right in your assumption of Samuel Asher's name, (that is no more than I've said elsewhere) but I won't comment on the location & his father wasn't unknown (no need to push me on this...I can work theoretically). What I have been told by someone who apparently knows of 3 or 4 cases where it has proved successful (not many, but the only thing I've got to go on since Samuel clearly didn't take his father's first name as a surname) is that some Jews, when they first arrived in England, realising they wouldn't be able to continue with the old pattern of naming, gave the paternal grandfather's surname as the first name of the first son. Thus, Samuel's father (the original immigrant) would have been

Asher & his father would have been Asher Samuel(s)
As I've said, I know it's highly speculative with a very low chance of success, but I'm willing to give it a go.If it's useless, so be it. But I do have all the details from the British census records, so if there is any way I can use those to work back, I can do it, or if there are any sites/subscriptions that would help, I can consult those