The BSA officially released the requirements and information on the four Historic Merit Badges (Carpentry, Pathfinding, Signaling, and Tracking) today, April, 1, 2010. Scouts may work on them now, but must complete them by December 31, 2010, if they wish to use them for rank advancement.
Included in the release are copies of merit badge pamphlets (from 1927, 1928, 1940, and 1942) available for download and additional background information for Scouts working on the badges.
The US Scouting Service Project has provided information on the badges on our website, and included links to the information on BSA's site, too.
A worksheet for Carpentry is already available. We hope to have worksheets for the other badges shortly.