The study of the wood supply for building the detached guest room of the Ikenaga's house in Hashimoto of 1920 is researched the original building document and clarified as follows;
For the building, the wood supplier made estimation next to the carpenter. This is same as the building of Kimura's house in 1914. According to the purchase record of building material, Ikenaga took the carpenter to Osaka and purchased some rare wooden materials. I can place the buying of the wood in Osaka by the Ikenagas as the beginning in this area with the opening to traffic of the railroad.
