The majority of porn stars usually do not share facts about their childhood, family, and generally about their life if this is not about their work in the adult industry. This trend is understandable. While there is nothing wrong in being an adult performer since making and watching porn is not forbidden in the majority of civilized countries, some people are really very judgemental about these types of profession.
As a result, the performers, even very famous and well-paid ones, try to conceal information about their place of birth, and especially about their parents, siblings, or children, to protect their loved ones from opinions of these judgemental people. A lot of actors adopt pseudonyms to make sure no one except their employer knows their real name.