There was an Alice Emily Cox d.1918 on this website:
search.ancestry.co.uk/search/db.aspx?dbid=1904

I have a subscription to Ancestry.uk but cannot get access to this new addition from Ancestry because they require an upgrade to a more expensive option. They have blocked the year of probate. If they have scanned the entries from the old Somerset House indexes, they are very informative.
Someone else might have access.

Free b/m/d has Deaths Sep 1918
Cox Alice E 61 Brentford 3a 203

Too old?

Sue