Burial of Jasper Grant

I am told that Colonel Jasper Grant (of the Grants of Kilmurry) was born in 1762 and died in 1812. I have read that he was buried in the family cemetery - which I assume is at Kilmurry House. I believe that there is a rather "ornate" table slab grave and would like to know where it is and whether I can get a photo of it.

I would also be intyerested in any descendants of Col. Grant (of the 41st Regiment) . He had a son Jasper St James Grant b 1800. A daughter Isabella Grant b 1802. A son Thomas John Grant b 1804 and the youngest daughter Marianne Grant b 1806. The 3 youngest children were all born in Canada when Col. Grant was there 1799-1809.

Can anyone help please?