Get the following materials from the person/store indicated around the Homestead:

Farmers: Hides, Wool
Hunting only: Bear Grease
Huntress/Hunting Materials: Pelts
Lumberer: Lumbers, Barks, Kindling, Charcoal
Miners: Ores, Limestone

TO get special iron ingots you need to do a mission for the miners in the Homestead. You can also find them by unlocking a chest behind your manor house.