If you hover over the henchman types in the unit design window, you see the exact same description for all three of them:

Shieldman and Torch Bearer both say "Bard's level and use ...".
First, Sheildman should say "Shieldmen level and use..." and Torch Bearer should say "Torch Bearers level and use ...".
Second, Bards should say "Bards level and use ..." - Lose the apostrophe.
Alternatively, all of them could say "Henchmen level and use ...".