I was back in Surrey this morning and took the opportunity to go back to Burvale Cemetery, Hersham, to find and photograph Odette's resting place.
The small flower display is affixed to the base of the gravestone so it isn't possible, without causing damage, to photograph the full inscription. The inscription reads : YVONNE MARIE ROSE
1890 - 1960
ODETTE MARIE CELINE
GC MBE Legion d'Honneur
1912 - 1995
1918 - 2006
As you said, above, she was an incredibly brave woman. The link to the obituary that you included in your post does more justice to this Lady than I ever could - so I will leave it at that.... I'm just going to repeat it here :http://www.independent.co.uk/news/people/obituary-odette-hallowes-1611563.html
I'm afraid that I couldn't find my book that shows her connection to Brighton.