So when this young woman's grave was moved, didn't they mark it at all?
The article said the families had to pay to move the tombstones in 1937, and if they didn't pay, the stones got used as landfill. I guess, in the 1930s, many families were impoverished due to the Depression. That just doesn't seem right somehow. She had been dead less than 50 years, and her family must have paid a lot for her original tombstone. There could easily have been people alive then who still remembered her.
One of the eeriest images I ever saw was on TV, when they were building the New Globe Theater in London, back in the early '90s. They uncovered a graveyard from the time of the Black Death, and there was an aerial view, rows and rows of skeletons. I don't know what they did with them all. I can understand moving a cemetery that old, but these cemeteries in San Francisco weren't really old at all.