Thanks MonicaLesl,
trust me to have the exception, the second had the same names as her maternal grandmother, the only son named after an uncle, the fourth daughter after her mother and the third, I haven't a clue. Which is why I wondered about the possiblity of the first having the names of her paternal grandmother. I haven't come across any variations of de Brulon, hence my query. The surname of Bruton is in use today, but I haven't found it in this case.