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Gunnar Miller's avatar

Excellent tips. After a recent graveyard tour back home https://substack.com/@gunnarmiller/note/c-287706711 , I'd add one more: Find A Grave photos usully include GPS coördinates in the metadata, which if cut-and-pasted into Google Maps can get you to within 3-10 meters reliably.

If a contributor stood at the stone with a phone, consumer GNSS gives 3–5 m under open sky, degrading to 10–15 m under tree canopy or beside a stone wall or church. Dual-frequency phones (most since ~2018) do better, 1–3 m. If instead they dropped a pin by eye on satellite imagery, the error is whatever they eyeballed plus any errors with Google's imagery georegistration. The pin is placed at your exact coordinate in Google's frame, but the satellite tile underneath has its own registration error, typically 1–5 m in the US, sometimes worse in hilly rural terrain where orthorectification against a coarse elevation model shifts things. So the pin can look off even when the coordinate is perfect.

Still, way better than having to walk a whole graveyard https://gunnarmiller.substack.com/p/were-all-related ... if you do that, you should offer the groundskeeper to push a mower whilst you're at it ;-)

Cyn Harris's avatar

Great article. My mother always said she never really knew where she was born. Her first child was stillborn and the second lived about 18 days. Recently, I located the death certificate of the second child and on it says my mother was born in Huntington, West Virginia. Now, I have a place to start to see if I can find my mother's birth certificate.

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