I went through the author's Twitter and found an art of the choir club's president(Alice) and drama club's president(Kokoro) as Alice Liddell and Queen of Hearts.
Out of curiosity, I decided to take a look of the names in each possible ships.
Ookami and Akai = Big Bad Wolf and Red Riding Hood
Suzushiro Yukino and Himezaki Nobara = Snow White and Briar Rose
I'm not sure about the kanjis, assuming Yukino's fullname means "White-bells Snow" and Nobara's "Blossom-Princess Wild rose" I wasn't sure about Nobara's but judging from sleeping habits, I guess Sleeping Beauty is the closest.