Possible Clues:

• After shuffling, ace, ten and, lastly, eight are all that turned up
• They all come and have a ball at ten
• At eight, dinner - then this perhaps for those present?
• Those present at specified time in evening move in time to music
• For those coming, the ball begins at 10.00 p.m
• Factor in grading, perhaps
• Those present look after a new church
• All those at the ball a couple of hours before midnight
• The ball starts at 10.00, for the present
• People present telecoms provider with space grade cable when disheartened