Her immigration record to Canada is listed in the online database of the National Archives of Canada:
Name: Doba Chwojnik
Arrived: Nov 14 1930
Age: 17, Single
Nationality: Poland
Ship: Koschiszko
Sailing from: Danzig
Born: Rozana, Poland
Passage paid by: Self
Occupation: Domestic
Going to: Mr. Kusiel Kronick, 4389 St. Dominique St, Montreal
Nearest relative in home country:
Parents: Pesa and Lejba Chwojnik, Rozana, Poland
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