Jack's local club, which he hasn't been to for 10 years (I might take a guess at which one).....so who do you think it is who does the MCing, announcements and thanks, sells tickets on the door, raffle tickets, distributes raffle prizes, brings in the noticeboard, puts out the chairs, returns glasses to the bar?
And if you bother to take out membership, you'll get a membership card, which lists Committee members and their phone numbers on it. And they have an AGM where you can meet these elusive Committee members, and even vote them back into office.
AND 10 years on, they have a website (probably for the the last 6 or 7 years) and (more recently) aFacebook page, where you can find the same info.
Plus if you really wanted to know who was on the Committee, you could always have just asked!