How does someone who is in his mid-thirties do that, if he has never had a social security number in his true identity ?

FORBES: Could Repairman Jack Come In From The Cold ?

Though he was only in his mid-thirties, a graduate of the University of Michigan, it was rumored that he had been a paleontologist and had taught at Yale.

NEWYORKER: The Master

Seen here in his mid-thirties, just four years removed from the acrimonious breakup of the most successful double act in the history of show business, Lewis is comedically fearless, so much a force of nature that he literally has Paar climbing the walls.

FORBES: Twilight Of The Gods

In the mid-thirties, Hanwell Snr went to Canada, an attempt to make his fortune in logging.

NEWYORKER: Hanwell Senior