With regard to Judith and Julia, is it possible that Judith is the formal name for Julia ? I have someone in my family who was always known as Julia but on her childrens baptism records she is down as Judith - on most of the records bar two, where Julia was recorded. As the lady in question had quite a lot of children, I have to search for records under Julia and Judith, and I am also finding a lot of mis - spellings of surnames too!
I came to the conclusion, that the priest put down the mothers formal birth name, for his parish records despite what she might have been known in everyday life.