Pat -- The Glen Miner Book#1 does not record any Heads in Callicott Cemetery; so, probably, your grandparents were buried (or the stone placed) after the 1960's. Here are the Heads in the book: Equality Village Cemetery Head, Charlie 1869 - 1874 son of A.& H. Hogan Cemetery Head, Charles 1897 - 1957 Fields Family Cemetery Head, William 1853 - 1883 McGhee Cemetery Head, Richard Co. H 131st Ill. Inf. Westwood Cemetery Head, Albert L. 1854 - 1942 Helen 1860 - 1944 Lory Holm