Hi
[ With 4 threads running on this family . . . . . ! ]
Florence-f-b-n, Is your Nan sure that she was brought up by her grandmother?
[ and not her aunt / one of her aunts ]
The reasons I ask this is because her grandfather [ Henry ? b1860? ] is recorded as being a widower before your Nan is born, and, there is a WestHam death of an Elizabeth, age range reasonable, in 1906.
When did your Nan's grandmother die? Alternatively, when did the person who raised your Nan die?
What were the names of Laura's siblings? Amy Elizabeth Mabel Henry +1 +1?
[ I have made the assumption that Laura's parent were Henry & Elizabeth ]
Ray