My initial reply was a brief answer to a question.
However, after reading Star Flakes response I would agree with some of his assessments. Depending upon the century and the era, lures and baits were quite simple and probably made as a ready to use product in many cases.
Some of the old time trappers may have realized that after a bit of aging or carrying the lure around for a while that it changed in smell and even got better. We can only assume this may have been the case.
Also a note of fact, back in the day when men lived in the wilderness for extended periods of months roughing it so to speak they most all would stock up with basic items as best they could prior to heading out living in the wilderness for a while.
Some of those basic items were sourdough starter, cooking utensils, flour, coffee, jerky, salt, some seasonings/spices, a good rifle, adequate powder & round balls, knives, fire starting materials, bedding and outer wear just to name a few. Remember they had to pack all they could on horseback / mule back and packhorse which many needed to pack all their gear in and out along with their fur and traps if they didn't stash some equipment after they pulled their line to save weight on the trip back to sell their fur.
As was stated, I agree that many trappers back in that era added to or replenished their lure as they needed on a demand basis. I don't know if they worried much about the quick mix fix lure making. I would have done the same I am sure if I didn't have other knowledge that may have influenced my decision differently. Things were basic and more simplified in the early years no doubt.
I wouldn't think they had more then 3-5 ingredients in a basic formula back in the early years depending upon how far you go back in time. Other ingredients became more popular and available thru the years that created many versions of various furbearer attractants.
I would think some of their spices and seasonings served double duty for food prep and lure ingredients along the way.
I imagine that they carried their lure in some sort of "animal part" pouch that had been water proofed with grease or fashioned a container from an animal horn much like a powder horn of sorts or a tin can. I don't think their were many glass or Tupper wear containers to carry their stink around with them. As rough as those fellas were on things I often wondered how they carried some items without breaking.