The last stop on my swing through eastern Virginia was the Virginia Living Museum in Newport News, which had requested help identifying some of the vertebrate fossil remains donated to them over the years. The highlight of their collection is the complete walrus skull shown above, which was pulled up from the seafloor by a scalloper off the coast of Virginia. VLM actually have quite a few walrus remains (mostly tusks) in their collection.
Some other goodies:
Isolated periotics from a small odontocete, apparently both from the same taxon (they have periotics from several different species):