Sail into a bygone era on steamship journeys along our Atlantic and Pacific coasts, the work of a junior engineer on the yet-to-be opened Panama Canal, the once-in-a-lifetime vacations of his independent and curious cousin, an uncle who has never been farther west than upper New York State, and a New England school teacher/farmer’s wife visiting4 her sister on a San Diego ranch. The letters they mail home turn up a century later and send William’s granddaughter on a vicarious journey in their footsteps. What in a Costa Rica port was manufactured in Vermont? How is a tugboat like Mark Twain’s donkey? A single sentence about the Sosostress wreck exhumes three versions of its story. Frigatebirds sleep while flying, mangroves are essential to planetary health, and possibly a postage stamp blocks Captain Eads’ design for a ship railway in Nicaragua.