Farthingbottom School is an elite establishment catering for the educational needs of an international group of students from noteworthy families. They have had complaints from some parents that the school dinners are not very healthy, more specifically that there is not enough fish on offer. As a result, the Headmaster has brought in a menu consultant to determine some suitable options.
The consultant sent out a questionnaire asking the pupils to indicate their preference for the following four options: 'Anchovies', 'mackerel', 'kedgeree', and 'salmon' on the following rating scale:
+4 Worship +3 Adore +2 Love +1 Like -1 Dislike -2 Hate -3 Detest -4 Abhorr
These are the responses he got back:
Dislike: Eloise-Florence; Magnus-Ford-Stephen; Marc-Frances
Love: Enrico; Portia; Eloise-Florence; Marc-Frances
Hate: Felix; Primula; Enrico; Marc-Frances; Magnus-Ford-Stephen
Detest: Portia; Eloise-Florence
Like: Felix; Primula; Enrico; Portia; Eloise-Florence; Marc-Frances; Magnus-Ford-Stephen
It was clear that serving kedgeree was going to suit the most children, however the headmaster anticipated that he would receive a backlash from Eldred-Campbell's parents. So he decided to write a letter to them.
Question: What was their surname?
Bonus: What were all the children's surnames?
The name of the school is completely irrelevant.
The rating system is powerful
What would this puzzle be about if there was a lack of fish?