Much to my dismay, I have noticed a nearly total lack of detailed, technical descriptions on ANYTHING pertaining to the first 175 to 200 years of European settlement and other activities in North America.
Was it because they act of writing something down was generally a much more laborious task due to the use of quills, ink, ink wells, and procuring paper as opposed to our ballpoint pens, pencils, and almost bewildering variety and availability of paper? Perhaps even the relative scarcity of smooth flat, even surfaces in less settled areas to lay the paper on for writing played a role here too; remember that sawed lumber for doors, benches,and table tops was often expensive and hard to come by.
The L & C expedition obviously went to great lengths to overcome those and many other obstacles, largely because documentation was one of the primary purposes of their trip Too bad for us the several members of the group who recorded in minute detail what they did and saw didn't take the time to give those of us interested in their personal equipment more to go on.
I seem to recall that some of their journals were lost when one of their boats capsized. I suppose there is the possibility than some of the information on the subject at hand was recorded in the documents lost, but not likely.