Question: When is David L. Wickens's wife's birthday?
Sentence (from "Aryness Joy Wickens"): Aryness Joy Wickens (January 5, 1901 – February 2, 1991) was an American economist and statistician who served as acting commissioner of the US Bureau of Labor Statistics and as president of the American Statistical Association, and who helped develop the United States Consumer Price Index.
Relevant evidence: Yes