About the head of the employed carpenters at the Kaga-Han ('the HEAD') :
1. Except the introduction period and the busy period, the number of people of 'the HEAD' was fixed as 2 in the first half of the period or 3 in another half.
2. The Ohnishis and the Yasudas had succeeded to 'the HEAD' in first, and the one whose father was that was advantageous to promotion to that.
3. More than 40% of the carpenters promoted to 'the HEAD' were promoted in their fifties. And more than 30% of them could be promoted in their thirties and forties.
