Wow, that is all so sad.
How did she meet him? Why was she illiterate? Was the family recent immigrants?
Her family was always close to her, nearby and in contact and yet that happened... so so so sad.
Maybe she wanted to move back home to raise her child in a safe environment not surrounded by domestic violence and he killed her out of jealousy. Telling her she is a *advertiser censored* and all and the baby is not his... yadda yadda, that is what the abusers always claim.
He took advantage of a young woman, who barely left childhood, knocked her up (also part of executing power) and controlled her. He probably told her she could not live without him as she was young and illiterate (and probably spoke little English).
Poor Evelyn and her daughter never ever even had a chance. That is so incredibly sad.