I found the following information in my search of my Wyoming mining accident database:
Date of Accident / Name of Victim / Age / Mine or Location / F=fatal or N=nonfatal / Reference Source / Page / Report Year
1949MAR7 AGER, HOWARD 21 RELIANCE F 73 11 1949
1968AUG AGER, JOHN UPTON N 74 79 1968
If any of the above are of interest to you, get back with me. I do have a little more information about these specific accidents.
“Mining Accidents U.S., Canada, New Zealand and Australia”