Unfortunately it is sometimes difficult to find out a persons real age. Anyone can register and then edit Wikki for example. A similar situation applies to a number of other sites. An example of this is Helena Little who was in Casualty and a number of other things. According to most places, I had a quick look, she was born in 1970. However, this is clearly wrong as she played Lady Windermere in 1985 and she wouldn't have gotten that part if she was only 15. Also she evidently won the Gold award for drama at the Guildhall School of music and drama in 1981. She must have been 21 then as they don't take 11 year olds.
This situation probably applies to a number of other people as well so If a person looks 50 and everywhere on line says she or he is 42, then maybe they really are 50.