As time passes in the mine where Ben and Candy are being held, they both grow beards, but their hair never gets any longer.
Ben's beard growth length far exceeds that of Candy. However, this is possible as some men can grow beards much faster and thicker than others.
When Little Joe & Hoss go into the mine, they take canteens, but no lanterns. However, in the mine shaft, there is light. Previously, Postley always had a lantern for light.