A while ago the US Forest Service made some films that may be a good resource. All of them were uploaded by Ross Gilmore over at
Wood Trekker.
"An Ax to Grind" focuses on axe choice and maintenance as well as use, including a good bit in the second part on hewing. The accompanying booklet can be
downloaded here.
"These Old Cabin Logs and Roofs" mostly focuses on repairing old log cabins on government claimed
land:
"Handtools for Trail Work" is pretty self-explanatory: