Keast family originated in Cornwall, Eng. My branch immigrated to US via Canada circa 1880. Ended up in Colorado mines. Three brothers, Wm., James, and Henry came, later bringing their families. Henry later went back to Eng. and then back to Canada. He may have had son named Wm as his father was named Wm. also older brother who also went back to Eng. and stayed there. My ancstor, James d. in CO. 1891. His son named Wm. also d. in trolly accident in the early 1900s.