If it has a half cock position it's just not possible because the hammer is not in contact with the firing pin at all.
Even on modern revolvers there is now a plate that come up only when the trigger is pulled which then allows the hammer to strike it, then the firing pin, there is no other possible way for them to fire.
The Henry almost certainly has one or both safety features but it's been too long since I looked closely at one to say.
The 1895's for sure cannot be fired except from the fully cocked position but some older models could conceivably be bump fired with a sharp enough blow with the hammer all the way down.
The long ranger does have a transfer bar "safety". I do not believe it has a half cock position because of this transfer bar safety.
I just wanted to ensure my thinking was correct. Because bump fire is a real concern in the bolt action world. However I believe a bump fire with the long ranger is impossible if the hammer is not cocked. And while hunting the hammer would not be cocked 99.99% of the time.