Source:
Minnesota’s Mining Accidents, 1900-1920, and Mining Deaths, 1889-1990 by Stina B. Green, published by Park Genealogical Books (1995), page 18
KLOBUCAR, John, died on 1919Oct22 at Spruce Mine, Eveleth; nationality Austrian, age 38, married (Source from 1919/20:33, St.Louis County Mine Inspector reports)
This is all the information that I have on this accident. A newspaper article or the inspector report may have more information.
From Jerry,
http://www.genealogy.com/users/s/h/e/Jerry-Sherard/ “Mining Accidents U.S., Canada, New Zealand and Australia”