That sounds very interesting Robyn.

You'll have to chase that up James.

Re the Graham surname - why

. Age is right. Area is right. Surname is wrong. Condition of "widow" is wrong. I wonder if she remarried a Mr Graham.

Can't see anything likely on Freebmd.
But, Stranger things have happened.
What is her occupation? Looks like "Stewardes".
Earlier I did look for a Graham marriage to an Eleanor SF but couldn't see anything likely. Others may be better searchers.
To be sure James, you will have to try to trace that Eleanor SF through the censuses.