QR Codes for the Dead (2014)
theatlantic.com
theatlantic.com
I thought it a few years ago, though more so for memorial plaques you see in parks on benches and elsewhere. Also, crosses on the side of the road ... the QR code tells the story of the person being memorialized.
I would think Ancestry.com would get involved with this or buy a start-up successfully jumps into this space.