Four men and a boy, Francis E. Watts, age 16, were killed in an explosion of gas in the Cook and White Mine at 11:50 a.m. The gas was ignited by the open lights two of the men took into the area.

The four men were: Fred Aira, Italian, age 32; John Piva, Italian, age 39; John Sienowesky, a Polander, age 35; and Adam Jerosewiez, a Polander, age 35.  Source document