Hi, I have an ancestor, John Ortmann, who was born about 1824 - 1829 in Westfalia, Prussia, and came out to America in the 1850s. He then sailed from New York to Melbourne, Australia on "The Sportsman" in 1856 and went looking for gold in the goldfields. He fathered my great grandmother, Mary Ann, whose mother was Therese Heeb. He died of T.B. in 1880. His name is spelt as Ortman, Oatman, Oughtman and Hortman on the various documents I have. Does anyone know how I can find out when he came to America, on what ship, and if there are any documents stating where he lived in Germany, please?