ROCHESTER — Stones will be the theme for three Rochester Historical Society events in May and June.

At 7 p.m. May 18, Rochester resident Steve DiMarzo will present a program on the ancient carvings on area rocks that he has studied and documented. The program will be at the Rochester Historical Museum, 355 County Road.

Turning to a different type of stone, Jeff Stevens will present a talk on the meaning of tombstone carvings in colonial New England cemeteries and how they evolved. This program will be held at 7 p.m. June 15 at the museum.

A guided tour of the Rochester Center Cemetery will take place at 1 p.m. June 12. Cemetery parking is limited, but attendees can park at Plumb Corner or at the Senior Center, 67 Dexter Lane.

Any questions about these events can be directed to Connie Eshbach at eshbach2@aol.com or (508)  763 4932.