Hi,
I went to the cemetery today and got caught in an absolute downpour! - I have some good news and not so good -
I was unable to find the number or name on any headstone in section F (flat or stood) (not so good news)
However!
The flat stones i was able to clean off from the light overgrowth were fairly 'readable' to an extent - the stones that were completely overgrown (at least 4inches of soil & perfect grass over them) I obviously couldn't get to.
I was unable to scrape away too much because of the intense rain, it just turned to mud and got very slippy and awkward.
It does mean though that it is very likely the stone is there, under the grass by a few inches. Now i am unsure about 'clearing' etiquette in the cemetery, but the few times i've been and removed soil from around the edges, the caretakers have been more than helpful, so i assume were you to want to uncover the stones, they may be off assistance (or at least allow you to do so)
Also, I am told that any stone that was removed from the site is transcripted somewhere, but i'm currently looking up that information myself, so if i find out where, i'll pass it on.
Another point, is the only graves i saw today (and i covered the entire far section F,G,H) to have only one name on, were the commonwealth graves, so could it be possible he is buried with another person/family? - that may make it easier for me to spot (as not all stones are completely visible)
I took a few pictures of the general area so you can see where it would be & the condition of the partially covered stones - the grass is slightly different above the buried stones, so it's somewhat obvious where they are; i shall upload them this evening or tomorrow, as soon as i figure out how to

Sorry I couldn't bring you the good news you wanted but i hope this is a help