Once you have reached your total of Elders (I've got 51) is there anyway to get more? Are there any 'events' which will allow you to get another one or two? I noticed there are people on the leaderboard with 52 and 53 and wondered how they did it? I know you can get a bigger population by filling in your collections.

There is one event that enables you to add to your elders but it's unlikely. First, it has to happen; second, the subject villager has to be an elder; third, you have to guess the right choice ('correct' answer is random).