User blog comment:Jopjopjop/Volume 19 Spoilers/@comment-104.7.80.176-20150224171053/@comment-16281343-20150224174835

1.) President - Xenovia Quarta 2nd Year
 * Devil - Rias' Knight

2.) Vice-President - Genshirou Saji 2nd Year
 * Devil - Sona's Pawn

3a.) Secretary - Tomoe Meguri 2nd Year
 * Devil - Sona's Knight

3b.) Secretary - Tadami Kamo 2nd Year
 * Human
 * From an Onmyouji family.
 * First appeared in a short story.

3c.) Secretary - Nakiri Ōryū 1st Year
 * New character
 * most likely a human
 * Nakiri Clan is part of the Great Family; same as Tsubaki and Himejima

4a.) Treasurer - Reya Kusaka 2nd Year
 * Devil - Sona's Bishop

4b.) Treasurer - Ruruko Nimura 1st Year
 * Devil - Sona's Pawn

4c.) Treasurer - Milaca Voldenbergh (ミラーカ・ヴォルデンベルグ) 1st Year
 * evident from the name, she's a foreigner
 * No other information