Buried in the Pan Burying Ground in Bolton, Massachusetts
In this simple gravestone of the 1860s, note the scroll work above the name. The shape of the gravestone is slightly different from others in this time period because it dips at the end of the top.
This is his information at Find-a-Grave. Note that the person who posted the photo did quite a bit of research.
According to the Massachusetts Vital Records, Cephas died 12 Oct 1865, of Dysentery and Thyphoid Fever at 71 Years, 3 Months and 5 Days.