Sentence:  On that date the Musicians Emergency Fund , organized to furnish employment for musicians unable to obtain engagements during the <WSD>depression</WSD> and to provide relief for older musicians who lost their fortunes in the stock market crash , observed its 30 th anniversary . 
Meaning of the word marked with <WSD> tags:  the economic crisis beginning with the stock market crash in 1929 and continuing through the 1930s