Could it be ... Morfin is literate enough to send owls?!
Dear Mr. or Ms. Hat,
Dr. Wilson says he'll be happy to supervise my medications and to help with the support group I promised you I'd start. I haven't forgotten my promise to you, Mr. or Ms. Hat!
We were wondering if you had a list of students who you think could especially use help. I was telling Dr. Wilson that a lot of times, people don't always know when they need help themselves, so just putting fliers up around the school might not be the best thing. At my sorting you seemed to have some people or at least personality types in mind, so maybe you could help us figure out who we should make a special point of inviting!
I hope you are happy and well.
Your friend,
Morfin the Hufflepuff
Dear Snoochiekins,
What kind of cat food do you like best? I know it's gooshyfood but what flavor? The house elf wants to know.
I can't wait until you get sorted. It looks like everyone is voting for you to go to Hufflepuff which means then you can come to be my roommate!
Your friend,
Morfin the Hufflepuff.
Dear Mr. Borg,
I have been trying to count backwards even more than before. I'm practicing very hard! Are you proud of me?
Your friend,
Morfin
Dear Victor,
I hope your eyebrow and BSD are feeling better. Here are some packets of camomile tea. It always helps me when I feel sick!
Your friend,
Morfin