These are Huw Morgan's older brothers.
Ianto, the eldest Morgan son, returns home from London with tales of terrible working conditions. Ianto feels the coal should belong to the people and not to just a few wealthy men. He eventually is discharged from the colliery over his union connections and goes to work for the neighboring ironworks.
Ivor, married to Bronwen, has a gift for music and forms his own huge choir, with the help of Mr. Gruffydd. The choir performs for Queen Victoria, and Ivor is the pride of his family. He is later killed in a mining accident.