I saw your message and tried to see if there was a link between our families. My Aylotts started out in Braughing, Herts. Why dont you request a copy of your grandfathers birth certificate with the GRO ref it is only £7 and you will receive it in a few days. This will give you his parents names, then you should be able to get back quite a long way. The GRO ref for William is 4a 260 birth place East Ham.