Retiring in 1969: a 4% withdrawal ran out of money in year 27

Retiring in 1969 with $1M and a 4% inflation-adjusted withdrawal, the money ran out in year 27 (1995). Its worst year was 1974, when the S&P 500 lost 20.7% including dividends. Inflation had pushed the yearly withdrawal from $40K to $169K by then. 1969 began with stocks near their highs and inflation rising, and a recession followed in 1969-70.