People who moved into Superior came from diverse ethnic backgrounds, including Austria, Slovenia, England, Wales, Scotland, Germany, Italy, Japan, and Greece. Other nationalities lived and worked in various Superior communities, contributing much to the growth and development of the area. They all shared the hardships and difficulties of relocating to a new nation and living in a remote coal town. Edith Sunada, whose mother came from Japan to live in Superior, recalled that her mother thought she had reached the end of the world because Superior in those days had no trees. Mrs. Sunada cried for days but eventually adjusted to life in the coal camp. The Sunadas stayed and raised their family in Sweetwater County despite those first impressions. Like other immigrants, they found opportunities for employment in the remote coal town along Horse Thief Creek.