You did not say which country Dwoire was from. This is not a
misspelling at all. The "w" is pronounced like a "v" in a number of
languages. This would be a correct spelling in Poland, for example.
You can't assume that
a spelling is wrong because it is not the current American spelling.
Have you found any records for Dwoire in Europe so you can see her
spelling was in Europe? Can you find the information for the ticket in NYC?
On the ship manifest her given name is spelled "Dwoire," an obvious
phonetic misspelling of Devorah. Her ticket was purchased in New York
by her husband. The name Devorah is not an unusual or difficult to spell
so its hard to understand how the steamship ticket agent could have
misspelled her name so badly. The only two logical explanations I can
come up with are (1) her husband spelled her name incorrectly on the
ticket application and handed it to the agent who copied it exactly the
way it was spelled on the application, or (2) her given name was
actually spelled correctly on the ticket, but at the port of embarkation
when she was asked her last name and first name the official may have
heard her say what sounded like, "Dwoire" and made the spelling change
that showed up on the final manifest. We can't overlook the fact that
our ancestors spoke with a thick Yiddish/Eastern European accent.
Avivah R. Z. Pinski , near Philadelphia, USA