Hello Marge,
Welcome to Rootschat.
Although I'm not planning to go to Mortlach cemetery in the near future, if you are willing to wait then I can take a photo for you - I usually go in July/August.
Mortlach is quite a large cemetery, do you know where the grave is? Doesn't matter if you don't, just put up his name anyway and I'll have a look next time I go.
regards
Elaine