As far as the notion of electronic directories...

I had the occasion to visit my Uncles grave for the first time since
his burial. At Saratoga National they have an interactive terminal at
the welcome center. One can locate the gravesite by name, and other
ways, and then print a map of the cemetary. It made finding his site
very easy. It is also necessary as they are doing a very brisk
business with WWII vets passing away at a rate over 1,000 per day and
keeping up on paper would be impossible.

An electronic directory would be a plus at any of our monuments.

Just my 5 cents worth.

Jim