Thank you Heather, that's very useful. What a mine of information there is in that set of records! With 800+ pages it may take some time to get through them though:-D
Yes I am waiting for the certificate, but in fairness to GRO, did only get round to ordering that one earlier this week so anticipate it appearing in a week or so's time. However, I looked to see what day I sent it and realised that I have put the wrong surname for Martha, Hodges instead of Hudson. Duh! I guess that might delay it a bit. Have sent a online form to highlight my senior moment so hopefully it won't be too long.
If it does not state that William Green is deceased, two thoughts spring to mind about this very slippery customer. First, is that factually correct? and secondly, did he disappear and start using yet another name? again! Three in fact, might he have gone with daughter Sarah, who I still have not found in 1871 or in a marriage or death registration, yet.
I certainly can't complain about having very boring ancestors now!