Found a Rudolph (no William or Wilhelm) through Steve Morse's website: http://stevemorse.org/

The site offers a variety of ways to search in one step.

It took me to several citations at Ancestry but this is the mmost likely:


New York Passenger Lists, 1820-1957
Name: Rudolph Refeld
Arrival Date: 27 Nov 1854
Birth Year: abt 1838
Age: 16
Gender: Male
Ethnicity/Race­/Nationality: German
Place of Origin: Germany
Port of Departure: Bremen, Germany
Destination: United States of America
Port of Arrival: New York
Port Arrival State: New York
Port Arrival Country: United States
Ship Name: Oldenburg
Search Ship Database: Search the Oldenburg in the 'Passenger Ships and Images' database

Source Citation: Year: 1854; Arrival: New York , United States; Microfilm Serial: M237; Microfilm Roll: M237_148; Line: 39; List Number: 1612; .