Chinese pottery

Back in roughly 1961, I was vacationing in the Sacramento area with my grandparents & brother. My railroad-loving grandfather had a map of where the Chinese workmen's camps had been. He scanned what was then open meadows and figured where the dump must have been. We dug up dark brown pots identical to a couple of artifacts on your site. Are people/museums interested in these items? Is there only value that of a loving granddaughter's memory of a man who could literally find buried treasure? (That value being obviously a lot given I've been carrying them around for the last forty-some years.)