Retiring in 1930: a 4% withdrawal ran out of money in year 47

Retiring in 1930 with $1M and a 4% inflation-adjusted withdrawal, the money ran out in year 47 (1976). Its worst year was 1931, when the S&P 500 lost 43.1% including dividends. Inflation had pushed the yearly withdrawal from $40K to $130K by then. A 1930 retiree started just after the crash and then lived through the deepest part of the Great Depression, as stocks kept falling until mid-1932.