Document describing a collection of records held at the Iron Range Research Center documenting the activity of Minnesota's first organized genealogical society.
Document describing a collection of records held at the Iron Range Research Center documenting the activity of Peter Del Greco, a former United States Steel employee.
Del Greco, Peter; Chisholm (Minn.); United States Steel Corporation; Iron mines and mining--Minnesota.
Patrick B spiral addition, featuring unfinished roof
Cooley, MN; Patrick B Plant; Butler Taconite Mine; Iron mining; Facilities; Mine buildings; Mining equipment; Construction; Laborers; I-beams; Building Materials;
