[freedomson]

Maybe he was a ‘zionist’.

[Calvin Locke]

That was my first thought.

OTOH, you have a lot of young'ins, liberals, and aging hippies visiting the place, and the ashes probably remind them of their own mortality.

As a kid, we popped into the original Smithsonian building. Smithson's "coffin" (wooden box containing his bones, iirc) was on display in an iron-gated nook.