I recall a (sort of) humorist doing a future archaelogical recount of excavations at Pound-Laundry (Washing-Ton).

There's also a book of anthropological sci-fi done in the 70s that has a good song reference. An anthropologist (or archaelogist) comes to a heavily devolved area and gets injured is rescued by the inhabitants and is not likely to live, but he keeps hearing them sing:
Balasamo balasamo
Sarnacoparno!
Bino Mosha
Sada Rosha
Chu Mila
Balasamo

As the light dies, he realizes he's been hearing a rendition of:

Bless 'em all, bless 'em all
Sergeants and Corporals all
There'll be no promotion
This side of the ocean
So cheer up my lads, bless 'em all!