Dead Babies

I went to a graveyard near work today at lunch. These three sad markers sat side by side.
Carl O. Waters 9/28/1915 - 02/04/16 (4 months?)
John D. Waters 01/04/21 - 01/16/21 (12 days)
Charlie T. Waters 06/30/23 -12/02/25. (1 year, 5 months?)
Mr. And Mrs. Waters were interred next to the kids... According to the tombstone, she was the sunshine of Mr. Water's life, but it looks like she delivered a lot of rain too.

It made me sad, and I wondered what had happened to the kids.

incidentally, Kathleen and I went to a graveyard in Canton, GA a few years ago and it looked like there were lots of families that had lost a huge number of kids. I wasn't sure if that was from the influenza, or what. But that must have been a sad town for a while. Some families lost more than others... I know that it is a recent thing that parents "expect" to have their kids make it to adulthood, but it is the only world I've known directly. My grandparents on both sides came from large families, and a lot of them made it to senior-adulthood which made for big reunions.

What's the gaming opportunity here?

1. It would be a cool intro to a mystery in an RPG. What happened in year X that caused all these kids to die. And will it happen again?

2. In this graveyard I was visiting, there were a lot of unmarked & sunken graves. And lots of graves were missing their tombstones, or had just a rock to mark them. Behind the graveyard is a shopping-center, and the drainage for the shopping center backs up to the graveyard, and there are tunnels where the water comes from the shopping center down to the drain pit. A similar set of tunnels burrows off towards the graveyard, and that set has a man-sized access hole with a rusty steel grating... and it has been pulled off and discarded. Do those tunnels actually extend under the tombs?