Aron Johansson born 4 May 1842 at Grebbestad, Sweden.His parents Johannes Olsson and Brita Helena Pettersdotter. His brother Isaac Johansson was also born in Grebbestad and emigrated to New Zealand in 1873. Aron emigrated to America in 1860 and I think on to N.Z. and then Australia.Where would I find passenger lists for people who emigrated to America in 1860.I would appreciate any clues or help. Thank you.