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1. Step 4 of testing an ore sample: Riffler in the mine lab, Minnesota

2. Step 5 of testing and ore sample: Ring stand and crucible, Minnesota

3. Step 3 of testing and ore sample: Grinding the sample in the mine lab, Minnesota

4. Step 1 of testing and ore sample: Gathering ore sample for the mine lab from the ore train, Minnesota

5. Step 2 of testing and ore sample: Crusher in the mine lab, Minnesota

6. United States Department of Interior, Bureau of Mines, Certificate of Mine Rescue Training to Charles H. Isaacson, Virginia, Minnesota

7. United States Department of Interior, Bureau of Mines, Certificate of Award in Safety to Sherman Mine, United States Steel Corporation, Chisholm, Minnesota

8. In the Hull-Rust Mine, Hibbing, Minnesota

9. The Annual Report of Mine Inspector, St. Louis County, Minnesota, Year 1928

10. The Annual Report of Mine Inspector, St. Louis County, Minnesota, Year 1924

11. Letter regarding Northeastern Minnesota Rehabilitation Committee Advisory Committee on Mining, Eveleth, Minnesota

12. Letter from Senator Henrik Shipstead regarding proposed Iron Range rehabilitation program defense project, Washington, D.C.

13. Letter from Senator Henrik Shipstead regarding proposed Iron Range rehabilitation program defense project, Washington, D.C.

14. Letter from Senator Henrik Shipstead regarding proposed Iron Range rehabilitation program defense project, Washington, D.C.

15. Interview with Charles "Chuck" Magney (1921- ), Schroeder Area Historical Society Oral History Collection, Schroeder, Minnesota

16. View of Mahoning mine, Hibbing, Minnesota

17. Letter from President Franklin D. Roosevelt regarding proposed Iron Range rehabilitation program, Washington, D.C.

18. Letter from Representative William Pittenger regarding proposed Iron Range rehabilitation program, Washington, D.C.

19. United States Steel ore docks, Duluth, Minnesota

20. Shaw Mine, Virginia, Minnesota

21. Shaw Mine, Virginia, Minnesota

22. Rouchleau Mine Pit, Virginia, Minnesota

23. Ore screening plant, Virginia, Minnesota

24. Ore Car Number 6, Virginia, Minnesota

25. Missabe Mountain Mine, Virginia, Minnesota

26. Missabe Mountain Mine, Virginia, Minnesota

27. Missabe Mountain Mine, Virginia, Minnesota

28. Missabe Mountain Mine, Virginia, Minnesota

29. Missabe Mountain Mine, Virginia, Minnesota

30. Missabe Mountain Mine, Virginia, Minnesota

31. Missabe Mountain mine, Virginia, Minnesota

32. Missabe Mountain Mine, Virginia, Minnesota

33. Missabe Mountain mine, Virginia, Minnesota

34. Mine View, Virginia, Minnesota

35. Pennington Mine, Crosby, Minnesota

36. "Ore, Iron, and Men" Volume 2, Number 9, September 1952

37. "Ore, Iron, and Men" Volume 4, Number 9, September 1954

38. Ore, Iron, and Men, Volume 5, Number 9, September 1955

39. "Ore, Iron, and Men" Volume 7, Number 9, September 1957

40. "Ore, Iron, and Men" Volume 9, Number 9, September 1959

41. "Ore, Iron, and Men" Volume 3, Number 9, September 1953

42. "Ore, Iron, and Men" Volume 1, Number 11, September 1951

43. "Ore, Iron, and Men" Volume 8, Number 9, September 1958

44. "Ore, Iron, and Men" Volume 10, Number 5, September 1960

45. "Ore, Iron, and Men" Volume 9, Number 10, October-November

46. "Ore, Iron, and Men" Volume 4, Number 10, October 1954

47. Ore, Iron, and Men, Volume 5, Number 10, October 1955

48. "Ore, Iron, and Men" Volume 6, Number 10, October 1956

49. "Ore, Iron, and Men" Volume 7, Number 10, October 1957

50. "Ore, Iron, and Men" Volume 3, Number 10, October 1953