Hi.
I posted some of these links in another thread. I also posted some pics of 18th century historical winter camping up in the Bushcraft Chatter forum.
http://www.historicaltrekking.com
http://frontierfolk.net/phpBB/index.php
http://www.northwestjournal.ca/
http://www.muzzleloadingforum.com/fusionbb/fusionbb.php?
http://www.traditionalmuzzleloadingassociation.com/forum/phpbb2/index.php?sid=bfeefc131f186e65b95a41d24996c91e
http://www.lanouvelle-france.com/
There are many groups out there doing 18th and 17th Century living history reenactments. Check out the Links sections on some of these sites to find other sites.
It's fun and very educational to do this historical living history stuff. You learn a lot of the older ways of doing things. And then there are the people doing the Medieval era, the Viking era, the Roman era, and even back to the paleo hunter/gatherer era - as your user name implies. But once you do start researching various time periods, you start to see a lot of stuff that crossed over the centuries - basic stuff in common around the world and over all the time periods.
Hope this helps.
As to the HBC wool blankets. Yes, they are great blankets - for what they are. But modern technology and materials have far surpassed them. So then it becomes a personal choice as to which you wish to use. I tend to use the older traditional gear.
There is an older Canadian mil/sup blanket that occasionally shows up on places like evil-bay that is a much thicker/tighter weave, and can work better in some situations than those classic HBC blankets. The company that made it is Ayers. I've picked up several off of evil-bay, and for a pretty reasonable price. They are white with a small black stripe along the top and bottom - a very early traditional trade blanket style/color that shows up in various paintings from the 17th ang 18th centuries.
Just my humble thoughts to share. Take them as such.
Mikey - yee ol' grumpy blacksmith out in the Hinterlands