So I've got a town in its 70th year and I'm sitting at around 310/35/50. I've had two separate bouts where ~50 people in my town die of old age in a short 2-3 year period. It seems that these periods happen some time after I let in a large number of nomads into my town. Is this what's happening? Nomads all come in at the same age and then die all together when their time comes? The only problem I'm having in this town now is keeping my population steady, and this old age problem is the only thorn in my side.

Should I be building ~20 houses when I let in all the nomads so my "Homes" tally stays above my "Families" one? Should I just stop letting Nomads in? I'm simply at a loss for dealing with these massive old age extinctions going on.