This gravestone marked Captain Isaac Davis's grave in what is now Woodlawn Cemetery until the erection of the granite memorial monument on the town common in 1851.  The remains of Isaac Davis (as well as James Hayward and Abner Hosmer) were moved to Acton center into, as expressed in Phalen's Acton history, "a niche prepared.. in the eternal stone of the monument."  The old tombstones were set on the ground around the monument.