For all the drivers who finished the game in race No. 592, who is the oldest?
drivers who finished the race refers to time is not empty; oldest driver refers to oldest dob;
SELECT T1.forename, T1.surname FROM drivers AS T1 INNER JOIN results AS T2 ON T2.driverId = T1.driverId WHERE T2.raceId = 592 AND T2.time IS NOT NULL AND T1.dob IS NOT NULL ORDER BY T1.dob ASC LIMIT 1