I have always felt places can be happy or sad, and if you belong or not. That said, I rarely find cemeteries sad. Maybe because I grew up playing in the one to the side of our house. I never had a fear of death or the dead. Really old cemeteries attract me like magnets. I am sure I have driven some of my friends crazy while travelling in Europe and trudging out through cow pastures to old cemetery sites. Especially love the ones that are built atop of even older sites, such as burial mounds, and old hill forts, and inside of stone rings. Many old burial mounds in the midwest are in the middle of cemeteries now because some distinguished family chose to inter themselves in with the ancient burial.
And yes, Neil, I would be quite happy puttering around in your garden looking for bits and pieces. I use an archaeology trowel instead of a garden trowel in my garden, so I would have to bring that along!