Analysis of information sources in references of the Wikipedia article "Pola Negri" in English language version.
... 138 Beethoven. Only shrine anywhere that honors both Our Lady of Czestochowa, Poland's black Madonna, and silent film star Pola Negri, a resident of San Antonio. ...
The exact spelling of her and her parents' names is complicated by the mandated use of Russian in government records in that part of [partitioned] Poland, when she was born. For instance, her father's last name is recorded as Халупец at the Lipno Office of Vital Records, which can be rendered in Polish as Chalupec, Chałupec, Chalupiec, or Chałupiec.