1564-1620 1835-1910 19thcentury adams alien american authors biography british descriptionandtravel discoveryandexploration english europe explorers foreigncountries greatbritain history inlandnavigation japan mark merchantmariners mississippiriver nauticalastronomy navalarchitecture navigation officialsandemployees relations riverboats safetymeasures sailingships sailors sociallifeandcustoms steamboats traveltwain unitedstates vm william