I have no William S Bray in my Illinois mining accident database. I also have no knowledge of Illinois strikes by miners.
Below is the related data that I found for Illinois Mining Accidents 1885-1948 in the Annual Coal Report of the Illinois Department of Mines and Minerals.
Date of Accident / Name of Person / Age / Residence or Name of Mine / F=Fatal or N=Nonfatal / Page & Reference Source
1934DEC26 BRAY, ERNEST SR BENLD F 106
1934DEC26 BRAY, ERNEST SR 55 SUPERIOR COAL F 193
1934DEC26 BRAY, ERNEST SR 55 BENLD F 194
1906DEC29 BRAY, JAMES 62 JONESVILLE N 171
1923SEP15 BRAY, JOHN 45 WEST FRANKFORT N 261
1919JUL7 BRAY, NICHOLAS 19 SAWYERVILLE F 79
1919JUL7 BRAY, NICKOLAS 19 GILLESPIE F 170
1919JUL7 BRAY, NICKOLAS 19 SAWYERVILLE F 172
1925JAN27 BRAY, WALTER LaSALLE COAL N 105
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”