Don't mind if they go more futuristic either, more sci fi perhaps?
For SF ones, Hasslefree (again) do a not-Adama from Battlestar Galactica. He's in a uniform, but you could get away with it.
Colony 87 is worth a look. There are definitely older folk in there, although the fashions may not suit your setting.
Some of the Frostgrave sprues (especially the Wizards ones) have older heads on them, so kit-bashing is an option. Posture may be an issue, just depends how elderly you want your figures.