Alright... working on a timeline:
1985 - Ezekiel Turner is born to a single Mary Turner in Atlantic City, NJ
1988 - Mary and her live in boyfriend move just south of Chicago, IL. Ezekiel is immediately subjugated to abuse after Doctor's think the boy may suffer from mental retardation.
1990 - Mary kills her boyfriend then commits suicide after she and Ezekiel suffer years of abuse. Ezekiel is admitted to Mount Sinai Hospital in Chicago, IL. (Mage Background Part 2)
1991 - A few days before his release, Ezekiel meets with a psychatrist. He only knows to refer to himself as 'One' due to the neglect and abuse he's suffered. A former patient of the psychatrists interrupts their session and attempts to kill the psychatrist, the whole event is the final trigger for Ezekiel / One's Awakening. (Mage Background Part 3) The Guardians of the Veil eventually catch up to him after he's been on the run a few days.
1992 - One's formal education training as a GotV begins. He remains a quiet part of the Order, not wanting to be noticed.
That's just a start, but makes him a bit older ... a little easier to play :) If anyone has events to throw at that timeline, I'm game :)