.... The Fourth of July barbecue at the Churchill’s is an opportunity to meet and talk with people from Powell, and also to talk casually with colleagues about our science. Many a collaboration and future Ph.D. thesis has been born of a conversation in the Churchill’s side yard, as a hot, sunny Fourth of July day turns into a beautiful cool evening. Sometimes local collectors bring finds for the professionals to identify, and sometimes we are even able to help them! I don’t know of anything quite like this get-together—a hybrid of family reunion, international professional conference and neighborhood picnic....