I know my ancestor from Bremen was running from the Prussian Army's draft around 1866 when he came to the USA, so probably he didn't have any papers that permitted him to leave, and perhaps that is why he doesn't seem to have applied for citizenship in America.
He lived within a 12-block area from the day he arrived as a teenager -- but I cannot find any record of his passage or a naturalization in the US --- although there is a passage record for a man named Rudolph (not Johann Heinrich Friedrich) who came 15-20 years earlier. Many of his family seem to have gone to the Canary Islands. -- Maureen
Researching: Costello (Galway and Mayo), Cotter, Durcan/Durkin, Higgins, Kelly, Lynch, McCarthy, Raftree/Raftery (Galway), Shannon, Sullivan, Welsh, Amacher, Baur, Bove, Cremer, Ehlen, Fischer, Gansberg (Bremen), Giefer, Hamacher, Hense/Henseler, Hofmann/Hoeffeler, Jackler/Jackelen, Jaegers, Koch, Kratz, Krebs, Morlot/Morlo/Morloh, Mueller/Meller, Mertes, Pick, Reetz, Rheinges, Reichardt/Reichert, Rick, Schmieden, Seitz/Zeidt, vonAlleman/Vollerman, vonMeer, Weiskopf, Zens, Albright, Compton, Corselius (PA>IA), Clemens/Clements(OH>MO), Daly/Daily (Galway), Derrick (Roscommon), Desponit/Dispennett, Early, Fallon (Galway), Greene (Waterford), Callaghan (Cork), Fitzgerald, McCarthy, McGrath (Waterford), McSweeney (Galway/Roscommon), Moss, Mullenix/Mullinax, Prichard, Reilly/O'Reilly (Galway, Roscommon), Shelly (PA), Shook (PA), Tye.